Which two numbers (NOT digits) should be interchanged to make the given equation correct?
5 × 40 ÷ 8 + 3 – 14 = 53
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 5 and 8.
Given equation: 5 × 40 ÷ 8 + 3 – 14 = 53
Option 1: 8 and 14
After interchanging the expression becomes:
= 5 × 40 ÷ 14 + 3 – 8 = 53
= 9.28 is not equal to 53.
Option 2: 5 and 3
After interchanging the expression becomes:
= 3 × 40 ÷ 8 + 5 – 14 = 53
= 6 is not equal to 53.
Option 3: 5 and 8
After interchanging the expression becomes:
= 8 × 40 ÷ 5 + 3 – 14 = 53
= 53 is equal to 53.
As we have found our answer, so, there is no need of checking other options.
Hence, option 3 is the correct answer.