# Logical Reasoning Questions And Answers :: Mathematical Operations: part2

Logical Reasoning Ability Test : Mathematical Operations QUESTIONS AND ANSWERS :: part2 : 1 to 5

Directions for Qns: Correct the following equations by interchanging the two signs:
 1. 51 ÷ 3 x 12 – 6 + 3 = 11 + and ÷ – and + x and ÷ – and x None of these ANSWER : None of these Explanation : . None of the interchanges is applicable in the equation to produce number 11.
 2. 3 – 9 x 27 + 9 ÷ 3 = 3 + an d- x and + x abd ÷ – and ÷ x and - ANSWER : x and - Explanation : . If we interchange x and -, the equation changes into 3 x 9 – 27 + 9 ÷ 3 = 27 – 27 + 3 = 3. Hence, option (5) is the correct answer.
 3. 15 ÷ 9 x 3 – 74 + 2 = 5 + and - ÷ and x + and ÷ – and ÷ None of these ANSWER : + and ÷ Explanation : . If we interchange signs + and ÷, then the equation results into 15 + 9 x 3 – 74 ÷ 2 = 15 + 27 – 37 = 5. Hence, option (3) is the correct answer.
 4. If `+’ means `x’, `-‘ means `÷’, `x’ means `-‘and `÷’ means `+’, then what will be the value of `12 ÷ 48 – 8 x 4 + 4 = ? 8 4 20 6 None of these ANSWER : None of these Explanation : . 12 + 48 ÷ 8 – 4 x 4 = 12 + 6 – 16 = 2
 5. 16 – 21 ÷ 7 x 6 + 3 = 31 – and + + and x ÷ and + ÷ and x – and x ANSWER : + and x Explanation : . Interchange of signs + and x makes the equation into 16 – 21 ÷ 7 + 6 x 3 = 16 – 3 + 18 = 31. Hence, option (2) is the correct answer.

More Mathematical Operations QUESTIONS AND ANSWERS available in next pages

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