Which two numbers from among the given options should be interchanged to make the given equation correct?
(150 ÷ 3 + 15) ÷ 3 × 6 + 30 = 135
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 150 and 135.
Given equation: (150 ÷ 3 + 15) ÷ 3 × 6 + 30 = 135
Option 1: 150 and 135
After interchanging the expression becomes:
= (135 ÷ 3 + 15) ÷ 3 × 6 + 30 = 150
= (45 + 15) ÷ 3 × 6 + 30
= 60 ÷ 3 × 6 + 30
= 20 × 6 + 30
= 120 + 30
= 150 is equal to 150.
As we have found our answer, there is no need to check further options.
Hence, option 1 is the correct answer.