Which two signs should be interchanged to make the below equation mathematically
correct?
54 × 6 – 36 ÷ 12 + 27 = 24
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. ÷ and –.
Given equation: 54 × 6 – 36 ÷ 12 + 27 = 24
Option 1: + and ÷
After interchanging the expression becomes:
= 54 × 6 – 36 + 12 ÷ 27 = 24
= 288.44 is not equal to 24.
Option 2: ÷ and –
After interchanging the expression becomes:
= 54 × 6 ÷ 36 - 12 + 27 = 24
= 9 - 12 + 27
= 24 is equal to 24.
As we have found our answer, there is no need to check further options.
Hence, ÷ and – is the correct answer.