Which two numbers should be interchanged to make the following equation correct?
36 ÷ 2 + 4 × 8 −11 × 3 + 28 = 49
(Note: Interchange should be done of the entire number and not individual digits of a given number.)
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 36 and 28.
Given equation: 36 ÷ 2 + 4 × 8 −11 × 3 + 28 = 49
Option 1) 36 and 28
After interchanging the numbers, we get
⇒ 28 ÷ 2 + 4 × 8 −11 × 3 + 36 = 49
⇒ 14 + 4 × 8 −11 × 3 + 36 = 49
⇒ 14 + 32 - 33 + 36 = 49
⇒ 82 - 33 = 49
⇒ 49 = 49