when buying home mortgageyou often have the option of paying some money in advance (called "discount points"to get lower interest rate assume that you have the choice between two -year mortgagesone at %and the other at with an up-front charge of of the mortgage value how long would it take to recover the charge when you take the mortgage at the lower rateas secondmore precise estimatehow long would it take to recover the charge plus the interest you would have received if you had invested the equivalent of the charge in the bank at interest while paying the higher ratedo not use calculator to help you answer this question when you build new houseyou sometimes get "construction loanwhich is temporary line of credit out of which you pay construction costs as they occur at the end of the construction periodyou then replace the construction loan with regular mortgage on the house during the construction loanyou only pay each month for the interest charged against the actual amount borrowed so far assume that your house construction project starts at the beginning of apriland is complete at the end of six months assume that the total construction cost will be $ , with the costs occurring at the beginning of each month in $ , increments the construction loan charges interest estimate the total interest payments that must be paid over the life of the construction loan here are some questions that test your working knowledge of how fast computers operate is disk drive access time normally measured in milliseconds (thousandths of secondor microseconds (millionths of second)does your ram memory access word in more or less than one microsecondhow many instructions can your cpu execute in one year if the machine is left running at full speed all the timedo not use paper or calculator to derive your answers does your home contain enough books to total one million pageshow many total pages are stored in your school library building how many words are in this book how many hours are one million secondshow many daysanswer these questions doing all arithmetic in your head how many cities and towns are there in the united states how many steps would it take to walk from boston to san francisco man begins car trip to visit his in-laws the total distance is milesand he starts off at speed of miles per hour after driving exactly milehe loses some of his enthusiasm for the journeyand (instantaneouslyslows