Which two signs should be interchanged in the following equation to make it correct?
12 - 8 + 12 × 9 ÷ 3 = 9
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. + and ÷
Given equation: 12 - 8 + 12 × 9 ÷ 3 = 9
From option 1 by interchanging signs + and ÷, we get;
12 - {(8 ÷ 12) × 9} + 3 = 9
⇒ 12 - 6 + 3 = 9
⇒ 15 - 6 = 9
Hence, option 1 is the correct answer.