Which two numbers should be interchanged to make the following equation correct?
9 × 2 −(150 ÷ 5) + 24 + (32÷ 8) × 6 + 15 = 71
(Note: Interchange should be done of the entire number and not individual digits of a given number.)
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 2 and 6.
Given equation: 9 × 2 − (150 ÷ 5) + 24 + (32÷ 8) × 6 + 15 = 71
On interchanging the number:
9 × 6 − (150 ÷ 5) + 24 + (32 ÷ 8) × 2 + 15 = 71
54 - 30 + 39 + 8 = 71
101 - 30 = 71
71 = 71