Which two numbers (not digits) should be interchanged to make the given equation correct?
15 + 5 × 8 - 72 ÷ 4 + 16 × 3 = 101
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 5 and 3.
Given equation: 15 + 5 × 8 - 72 ÷ 4 + 16 × 3 = 101
After interchanging the numbers;
15 + (3 × 8) - (72 ÷ 4) + (16 × 5) = 101
⇒ 15 + 24 - 18 + 80 = 101
⇒ 15 + 24 - 18 + 80 = 101
⇒ 119 - 18 = 101