Which two signs should be interchanged to make the given equation correct?
39 ÷ 3 – 11 + 57 × 29 = 171
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. – and ×.
Given equation: 39 ÷ 3 – 11+ 57 × 29 = 171
Option 1: – and ×
After interchanging the expression becomes:
= 39 ÷ 3 × 11 + 57 - 29 = 171
= 13 × 11 + 57 - 29
= 143 + 57 - 29
= 200 - 29 = 171