Which two signs should be interchanged to make the equation mathematically correct?
63 ÷ 3 × 21 – 15 + 12 = 6
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. ÷ and ×.
Given equation: 63 ÷ 3 × 21 – 15 + 12 = 6
Option 2: ÷ and ×
After interchanging the expression becomes:
63 × 3 ÷ 21 – 15 + 12 = 6
9 – 15 + 12 = 6
9 – 3 = 6
6 = 6