Which two signs should be interchanged to make the equation mathematically correct?
128 - 8 + 96 ÷ 16 × 20 = 16
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. - and +.
Given equation: 128 - 8 + 96 ÷ 16 × 20 = 16
Option 1: × and ÷
After interchanging the expression becomes:
= 128 - 8 + 96 × 16 ÷ 20 = 16
= 196.8 is not equal to 154.
Option 2: - and +
After interchanging the expression becomes:
= 128 + 8 - 96 ÷ 16 × 20 = 16
= 128 + 8 - 6 × 20
= 128 + 8 - 120
= 16 is equal to 16.
As we have found our answer, there is no need to check further options.
Hence, option 2 is the correct answer.