Which two numbers and two signs should be interchanged in the following equation to make it correct?
14 + 16 - 14 × 9 ÷ 4 = 61
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 16 and 9, + and -
Given: 14 + 16 - 14 × 9 ÷ 4 = 61
From option 2): 16 and 9, + and -
After interchanging '16 and 9', and '+' and '-', we get:
L.H.S = 14 - 9 + 14 × 16 ÷ 4 = 61
= 5 + 56
= 61 = R.H.S
Hence, the correct answer is 16 and 9, + and -.