Which two signs need to be interchanged to make the following equation correct?
15 – 14 ÷ 21 × 27 + 9 = 64
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. + and ÷.
Given equation: 15 – 14 ÷ 21 × 27 + 9 = 64
Option 1: + and ÷
After interchanging the expression becomes:
= 15 – 14 + 21 × 27 ÷ 9 = 64
= 64 is equal to 64
As we have found our answer, there is no need to check other options.
Hence, option 1 is the correct answer.