Which two numbers (not individual digits) should be interchanged to make the given equation correct?
[(39 – 3) ÷ 6] + 11 × 2 – 4 × 5 = 13
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4, i.e., 3 and 6.
After interchanging the number,
[(39 – 3) ÷ 6] + 11 × 2 – 4 × 5 = 13
[(39 – 6) ÷ 3] + 11 × 2– 4 × 5 =13
[33÷3] + 11 × 2 – 4 × 5 =13
11 + 22 – 20 = 13
33 – 20 = 13
13 = 13