 # Logical Reasoning Questions And Answers :: Mathematical Operations: part2 Logical Reasoning Ability Test : Mathematical Operations QUESTIONS AND ANSWERS :: part2 : 6 to 10

Directions for Qns: Correct the following equations by interchanging the two signs:
 6. 16 + 4 ÷ 2 – 21 x 7 = 21 + and - + and x – and ÷ x and ÷ None of these ANSWER : x and ÷ Explanation : . If we interchange the signs x and ÷, the equation becomes 16 + 4 x 2 – 21 ÷ 7 = 16 + 8 – 3 = 21. Hence, option (4) is the correct answer.
 7. If `+’ means `x’, `-‘ means `÷’, `÷’ means `+‘ and `x’ means `-‘, then what will be the value of 16 ÷ 64 – 4 x 4 + 3 = ? 20 15.12 52 12 None of these ANSWER : 20 Explanation : . 16 + 64 ÷ 4 – 4 x 3 = 16 + 16 – 12 = 20
 8. 5 x 15 ÷ 7 – 20 + 4 = 77 – and + x and ÷ + and ÷ + and x – and ÷ ANSWER : + and ÷ Explanation : . If we interchange signs + and ÷, then the equation results into 5 x 15 + 7 – 20 ÷ 4 = 5 x 15 + 7 – 5 = 77. Hence, option (3) is the correct answer.
 9. 4 x 2 + 6 ÷ 2 – 12 = 2 ÷ and x + and - x and + ÷ and - x and - ANSWER : ÷ and x Explanation : . If we interchange signs ÷ and x, then equation changes into 4 ÷ 2 + 6 x 2 – 12 = 2 + 12 – 12 = 2. Hence, option (1) is the correct answer.

More Mathematical Operations QUESTIONS AND ANSWERS available in next pages

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