Which two numbers should be interchanged to make the given equation correct?
40 × 2 – (5 × 13) + 15 (4 × 2) + 156 ÷ 12 = 152
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 12 and 13.
Given equation: 40 × 2 – (5 × 13) + 15 (4 × 2) + 156 ÷ 12 = 152
Option 3) 12 and 13
After interchanging the numbers, we get
⇒ 40 × 2 – (5 × 12) + 15 (4 × 2) + 156 ÷ 13 = 152
⇒ 40 × 2 – 60 + 15 × 8 + 12 = 152
⇒ 80 – 60 + 120 + 12 = 152
⇒ 212 – 60 = 152
⇒ 152 = 152