Which two numbers(not digits) should be interchanged in the following equation to make it correct?
56 ÷ 16 × 8 + 45 × 13 = 697
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 16 and 8.
Given equation: 56 ÷ 16 × 8 + 45 × 13 = 697
Option 1: 16 and 8
After interchanging the expression becomes:
= 56 ÷ 8 × 16 + 45 × 13 = 697
= 7 × 16 + 45 × 13
= 112 + 585
= 312 - 16
= 697 = 697
As we have found our answer, there is no need to check further options.
Hence, 16 and 8 is the correct answer.