Which of the mathematical signs should be interchanged in the below equation to make it mathematically correct?
3 + 78 ÷ 13 - 9 × 117 = 126
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. + and ×.
Given equation: 3 + 78 ÷ 13 - 9 × 117 = 126
Option 2: + and ×
After interchanging the expression becomes:
3 × 78 ÷ 13 - 9 + 117 = 126
3 × 6 - 9 + 117 = 126
18 - 9 + 117 = 126
126 = 126