Which two signs should be interchanged to make the equation mathematically correct?
30 + 54 ÷ 18 − 48 × 16 = 58
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. × and +.
Given equation: 30 + 54 ÷ 18 − 48 × 16 = 58
Option 1: × and +
After interchanging the expression becomes:
= 30 × 54 ÷ 18 − 48 + 16 = 58
= 30 × 3 − 48 + 16
= 90 − 48 + 16
= 58 = 58
As we have found our answer, there is no need to check further options.
Hence, × and + is the correct answer.