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a towel , when bleached , lost 20 % of its length and 10 % of its breadth . what is the percentage decrease in area ? | 2gain
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two numbers are respectively 35 % and 50 % more than a third number . the percentage that is first of the second is ? | 2gain
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a person lent a certain sum of money at 4 % per annum at simple interest and in 8 years the interest amounted to rs . 272 less than the sum lent . what was the sum lent ? | 2gain
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a marketing firm determined that , of 200 households surveyed , 80 used neither brand r nor brand b soap , 60 used only brand r soap , and for every household that used both brands of soap , 3 used only brand b soap . how many of the 200 households surveyed used both brands of soap ? | 5other
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the length of the bridge , which a train 150 meters long and travelling at 45 km / hr can cross in 30 seconds , is ? | 1physics
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if x and y are numbers such that ( x + 4 ) ( y - 4 ) = 0 , what is the smallest possible value of x ^ 2 + y ^ 2 | 0general
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in the set of positive integers from 1 to 90 , what is the sum of all the odd multiples of 5 ? | 0general
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1000 men have provisions for 18 days . if 400 more men join them , for how many days will the provisions last now ? | 1physics
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if f ( f ( n ) ) + f ( n ) = 2 n + 3 , f ( 0 ) = 1 then f ( 2014 ) = ? | 0general
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a , b and c can do a piece of work in 30 days , 30 days and 40 days respectively . they began the work together but c left 4 days before the completion of the work . in how many days was the work completed ? | 1physics
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a man buys an article for $ 100 . and sells it for $ 110 . find the gain percent ? | 2gain
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a sum of money at simple interest amounts to rs . 815 in 3 years and to rs . 854 in 4 years . the sum is : | 2gain
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if the average ( arithmetic mean ) of x + 1 , x + 5 , and x + 9 is 0 , then x = | 0general
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country c imposes a two - tiered tax on imported cars : the first tier imposes a tax of 14 % of the car ' s price up to a certain price level . if the car ' s price is higher than the first tier ' s level , the tax on the portion of the price that exceeds this value is 8 % . if ron imported a $ 14,000 imported car and ended up paying $ 1440 in taxes , what is the first tier ' s price level ? | 0general
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what should be added to 4750 so that it may become a perfect square ? | 3geometry
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john makes $ 60 a week from his job . he earns a raise andnow makes $ 72 a week . what is the % increase ? | 2gain
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50 + 5 * 12 / ( 180 / 3 ) = ? | 0general
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find number which is 50 % less than 60 . | 2gain
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mark bought a set of 6 flower pots of different sizes at a total cost of $ 7.80 . each pot cost 0.25 more than the next one below it in size . what was the cost , in dollars , of the largest pot ? | 0general
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a certain basketball team that has played 2 / 3 of its games has a record of 18 wins and 2 losses . what is the greatest number of the remaining games that the team can lose and still win at least 3 / 4 of all of its games ? | 0general
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a circular well with a diameter of 2 metres , is dug to a depth of 10 metres . what is the volume of the earth dug out ? | 3geometry
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a sum fetched a total simple interest of $ 4241.25 at the rate of 9 p . c . p . a . in 5 years . what is the sum ? | 2gain
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the unit digit in the product ( 635 * 767 * 984 * 489 ) is : | 0general
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in a survey of political preferences , 78 % of those asked were in favour of at least one of the proposals : i , ii and iii . 50 % of those asked favoured proposal i , 30 % favoured proposal ii , and 20 % favoured proposal iii . if 5 % of those asked favoured all 3 of the proposals , what x percentage of those asked favoured more than one of the 3 proposals . | 0general
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a certain bag contains 60 balls — 22 white , 18 green , 2 yellow , 15 red , and 3 purple . if a ball is to be chosen at random , what is the probability that the ball will be neither red nor purple ? | 5other
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if the personal income tax rate is lowered from 38 % to 30 % , what is the differential savings for a tax payer having an annual income before tax to the tune of $ 36500 ? | 2gain
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elvin ' s monthly telephone bill is the sum of the charge for the calls he made during the month and a fixed monthly charge for internet service . elvin ' s total telephone bill for january was $ 48 and elvin ' s total telephone bill for february was 90 $ . if elvin ' s charge for the calls he made in february was twice the charge for the calls he made in january , what is elvin ' s fixed monthly charge for internet service ? | 0general
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in the recent , climate conference in new york , out of 500 men , 300 women , 500 children present inside the building premises , 10 % of the men , 60 % of the women and 70 % of the children were indians . find the percentage of people who were not indian ? | 2gain
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two numbers are in the ratio of 5 : 8 . if 30 be subtracted from each , they are in the ratio of 5 : 9 . find the numbers ? | 5other
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find k if 56 / k = 4 . | 0general
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a car traveled from san diego to san francisco at an average speed of 45 miles per hour . if the journey back took twice as long , what was the average speed of the trip ? | 1physics
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a 400 meter long train crosses a man standing on the platform in 10 sec . what is the speed of the train ? | 1physics
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a man took a loan from a bank at the rate of 9 % p . a . simple interest . after 3 years he had to pay rs . 5400 interest only for the period . the principal amount borrowed by him was : | 2gain
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what is the value of ( 44444445 * 88888885 * 44444442 + 44444438 / 44444444 ^ 2 ) | 0general
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jack spent 1 / 6 of his lifetime in adolescence . his facial hair started growing after 1 / 12 more of his life . he successfully married his girlfriend diana after 1 / 7 more of his life . their son was born after 5 years from then . the son lived just 1 / 2 of what jack lived . jack dies 4 years after his son died . how long did jack live ? | 0general
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if 7 a - 3 b = 10 b + 40 = - 12 b - 2 a , what is the value of 9 a + 9 b ? | 0general
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the price of a book is increased from $ 300 to $ 420 . what is the % of increase in its price ? | 2gain
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a train 210 m long is running at a speed of 45 km / hr . in what time will it pass a bridge 140 m long ? | 1physics
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the total price of a basic computer and printer are $ 2,500 . if the same printer had been purchased with an enhanced computer whose price was $ 500 more than the price of the basic computer , then the price of the printer would have been 1 / 8 of that total . what was the price of the basic computer ? | 0general
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39 ! is divided by 41 then what is the remainder ? | 5other
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if x is equal to the sum of the integers from 10 to 30 , inclusive , and y is the number of even integers from 10 to 30 , inclusive , what is the value of x + y ? | 0general
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the product of two numbers is 4107 . if the h . c . f . of these numbers is 37 , then the greater number is : explanation : | 0general
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if 42.36 = k ( 14 + m / 50 ) , where k and m are positive integers and m < 50 , then what is the value of k + m ? | 0general
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if x and y are sets of integers , x # y denotes the set of integers that belong to set x or set y , but not both . if x consists of 14 integers , y consists of 18 integers , and 6 of the integers are in both x and y , then x # y consists of how many integers ? | 5other
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how many seconds will a 700 meter long train take to cross a man walking with a speed of 3 km / hr in the direction of the moving train if the speed of the train is 63 km / hr ? | 1physics
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a bakery has 6 employees . it pays annual salaries of $ 16,000 to each of 2 employees , $ 18,000 to 1 employee , and $ 19,000 to each of the remaining 3 employees . which number is closest to the average ( arithmetic mean ) annual salary of these employees ? | 0general
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find large no . from below question the difference of two numbers is 1365 . on dividing the larger number by the smaller , we get 6 as quotient and the 35 as remainder | 0general
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how many odd numbers between 10 and 1400 are the squares of integers ? | 3geometry
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n is a whole number which when divided by 4 gives 3 as remainder . what will be the remainder when 2 * n is divided by 4 ? | 0general
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a person want to give his money of $ 2700 to his 3 children a , b , c in the ratio 2 : 3 : 4 . what is the b ' s share ? | 5other
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the h . c . f . of two numbers is 23 and the other two factors of their l . c . m . are 13 and 18 . the larger of the two numbers is : | 5other
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if 6 ^ k = 4 , then 6 ^ ( 2 k + 3 ) = | 0general
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a can finish a work in 18 days and b can do the same work in half the time taken by a . then , working together , what part of the same work they can finish in a day ? | 1physics
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an empty fuel tank with a capacity of 212 gallons was filled partially with fuel a and then to capacity with fuel b . fuel a contains 12 % ethanol by volume and fuel b contains 16 % ethanol by volume . if the full fuel tank contains 30 gallons of ethanol , how many gallons of fuel a were added ? | 2gain
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the weight of a hollow sphere is directly dependent on its surface area . the surface area of a sphere is 4 π · r ^ 2 , where r is the radius of the sphere . if a hollow sphere of radius 0.15 cm made of a certain metal weighs 8 grams , a hollow sphere of radius 0.3 cm made of the same metal would weigh how many grams r ? | 3geometry
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10 women can complete a work in 7 days and 10 children take 14 days to complete the work . how many days will 2 women and 10 children take to complete the work ? | 1physics
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a train travels at the rate of 10 miles / hr for the first hour of a trip , at 20 miles / hr for the second hour , at 30 miles / hr for the third hour and so on . how many hours will it take the train to complete a 660 - mile journey ? assume that the train makes no intermediate stops . | 1physics
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how many integers are divisible by 2 between 10 ! and 10 ! + 20 inclusive ? | 0general
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ramesh purchased a refrigerator for rs . 14500 after getting a discount of 20 % on the labelled price . he spent rs . 125 on transport and rs . 250 on installation . at what price should it be sold so that the profit earned would be 10 % if no discount was offered ? | 2gain
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if equation | x / 2 | + | y / 2 | = 4 encloses a certain region on the coordinate plane , what is the area of this region ? | 0general
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let f ( x ) = x ^ 2 + bx + c . if f ( 6 ) = 0 and f ( - 1 ) = 0 , then b + c = | 0general
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approximately how many revolutions will be made by a car tire with a 13 - inch diameter if the car travels 1 ⁄ 2 mile ? | 0general
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if x / y = 2 / 5 , then ( x + y ) / ( x - y ) = ? | 0general
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if the radius of a circle is increased by 60 % then the area is increased by : | 3geometry
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a company that ships boxes to a total of 12 distribution centers uses color coding to identify each center . if either a single color or a pair of two different colors is chosen to represent each center and if each center is uniquely represented by that choice of one or two colors , what is the minimum number of colors needed for the coding ? ( assume that the order of the colors in a pair does not matter ) | 0general
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10 binders can bind 1400 books in 21 days . how many binders will be required to bind 1800 books in 20 days ? | 1physics
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an industrial loom weaves 0.128 metres of cloth every second . approximately , how many seconds will it take for the loom to weave 27 metre of cloth ? | 1physics
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a man cheats while buying as well as while selling . while buying he takes 10 % more than what he pays for and while selling he gives 20 % less than what he claims to . find the profit percent , if he sells at 11 % below the cost price of the claimed weight . | 2gain
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the diameter of the driving wheel of a bus in 140 cm . how many revolutions per minute must the wheel make in order to keep a speed of 11 kmph ? | 1physics
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1 * 2 + 2 * 2 ^ 2 + 3 * 2 ^ 3 + 4 * 2 ^ 4 … … … … … … … … + 2012 * 2 ^ 2012 | 0general
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stock / number of shares v - - - - - - - - - - - - 68 w - - - - - - - - - - 112 x - - - - - - - - - - - - 56 y - - - - - - - - - - - - 94 z - - - - - - - - - - - - 45 the table shows the number of shares of each of the 5 stocks owned by mr sami . if mr . sami was to sell 20 shares of stock x and buy 23 shares of stock y , what would be the increase in the range of the numbers of shares of the 5 stocks owned by mr . sami ? | 0general
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if the cost price of 20 articles is equal to the selling price of 25 articles , what is the % profit or loss made by the merchant ? | 2gain
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the mean of 50 observations was 32 . it was found later that an observation 48 was wrongly taken as 23 . the corrected new mean is | 0general
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0.009 / x = 0.05 . find the value of x | 0general
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by selling an article at rs . 700 , a shopkeeper makes a profit of 25 % . at what price should he sell the article so as to make a loss of 25 % ? | 2gain
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in a office work is distribute between p persons . if 1 / 6 members are absent then work increased for each person is ? | 0general
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a cistern which could be filled in 9 hours takes 1 hour more to be filled owing to a leak in its bottom . if the cistern is full , in what time will the leak empty it ? | 1physics
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the total marks obtained by a student in mathematics and physics is 60 and his score in chemistry is 10 marks more than that in physics . find the average marks scored in mathamatics and chemistry together . | 0general
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mrs . evans gave a test to her freshmen economics class , which has 50 students enrolled and 25 of them answered question 1 correctly . if 20 answered question 2 correctly and 20 did not take the test then how many answered both questions correctly ? | 5other
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carl can wash all the windows of his house in 8 hours . his wife maggie can wash all the windows in 4 hours . how many hours will it take for both of them working together to wash all the windows ? | 1physics
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in a certain parking lot , 3 % of the cars are towed for parking illegally . however 80 % of the cars which are parked illegally are not towed . what % of cars in the parking lot are parked illegally . ' | 2gain
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if the given two numbers are respectively 5 % and 25 % of a third number , then what percentage is the first of the second ? | 2gain
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if the radius of a cylinder is doubled and height 4 times , what is the new volume of the cylinder divided by the old one ? | 0general
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starting from his house one day , a student walk at a speed of 2 kmph and reaches his school 10 minutes late . next he increased his speed by 1 kmph and reaches the school 10 minutes early . how far is the school from his house ? | 1physics
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if 23 lines are drawn in a plane such that no two of them are parallel and no three are concurrent , then in how many points do they intersect ? | 1physics
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what is the compound interest on rs . 6500 at 5.5 % p . a . compounded half - yearly for 1 year . | 2gain
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the length of a rectangle is two - fifths of the radius of a circle . the radius of the circle is equal to the side of the square , whose area is 1225 sq . units . what is the area ( in sq . units ) of the rectangle if the rectangle if the breadth is 6 units ? | 3geometry
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the sum of the non - prime numbers between 20 and 30 , non - inclusive , is | 0general
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there are 60 supermarkets in the fgh chain . all of them are either in the us or canada . if there are 22 more fgh supermarkets in the us than in canada , how many fgh supermarkets are there in the us ? | 0general
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a salt manufacturing company produced a total of 1000 tonnes of salt in january of a particular year . starting from february its production increased by 100 tonnes every month over the previous months until the end of the year . find its ave 66 rage daily production for that year ? | 0general
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how much water should be added to 15 liters of a 20 % - solution of alcohol to reduce the concentration of alcohol in the solution by 75 % ? | 0general
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the sum of ages of 5 children born 3 years different each is 70 yrs . what is the age of the elder child ? | 0general
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in a sample of 800 high school students in which all students are either freshmen , sophomores , juniors , or seniors , 27 percent are juniors and 75 percent are not sophomores . if there are 160 seniors , how many more freshmen than sophomores are there among the sample of students ? | 2gain
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find the average of all the numbers between 6 and 36 which are divisible by 5 . | 0general
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tom , working alone , can paint a room in 10 hours . peter and john , working independently , can paint the same room in 5 hours and 2 hours , respectively . tom starts painting the room and works on his own for two hour . he is then joined by peter and they work together for two hour . finally , john joins them and the three of them work together to finish the room , each one working at his respective rate . what fraction of the whole job was done by peter ? | 1physics
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a train 440 m long is running with a speed of 60 km / hr . in what time will it pass a man who is running at 6 km / hr in the direction opposite to that in which the train is going ? | 1physics
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a can do a piece of work in 10 days and b can do it in 15 days and c can do it 20 days . they started the work together and a leaves after 2 days and b leaves after 4 days from the beginning . how long will work lost ? | 1physics
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find two integers , neither of which ends in a zero , and whose product is exactly 1 , 00,000 | 0general
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a man starts walking at 3 pm . ha walks at a speed of 4 km / hr on level ground and at a speed of 3 km / hr on uphill , 6 km / hr downhill and then 4 km / hr on level ground to reach home at 9 pm . what is the distance covered on one way | 1physics
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a train 175 m long running at 36 kmph crosses a platform in 40 sec . what is the length of the platform ? | 1physics
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