Which two numbers should be interchanged to make the given equation correct?
9 ÷ 3 + 1 × 7 - 4 = 0
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 4 and 7.
Given equation: 9 ÷ 3 + 1 × 7 - 4 = 0
Option 1: 4 and 7
After interchanging the expression becomes:
⇒ (9 ÷ 3) + 1 × 4 - 7 = 0
⇒ 3 + (1 × 4) - 7
⇒ 3 + 4 - 7
⇒ 0 = 0
Hence, the correct answer is 4 and 7.