Which two signs should be interchanged to make the equation mathematically correct?
26 - 13 + 39 ÷ 117 × 24 = 31
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. - and +.
Given equation: 26 - 13 + 39 ÷ 117 × 24 = 31
Option 1: - and +
After interchanging the expression becomes:
= 26 + 13 - 39 ÷ 117 × 24 = 31
= 26 + 13 - 8
= 39 - 8
= 31
Hence, - and + is the correct answer.