Which two numbers should be interchanged to make the given equation correct?
8 × 4 - 3 + 57 ÷ 9 = 42
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 3 and 9.
8 × 4 - 3 + 57 ÷ 9 = 42
After interchanging numbers,
8 × 4 - 9 + (57 ÷ 3) = 42
32 - 9 + 19 = 42
32+10 = 42
42 = 42.