If signs ‘+’ and ‘-’ and numbers 14 and 6 are used interchangeably, then which of the following equations would be correct?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 6 + 14 × 2 - 18 = 20
Given conditions: Signs ‘+’ and ‘-’ and numbers 14 and 6 are interchanged
Option 1: 6 + 14 × 2 - 18 = 20
After interchanging the expression becomes:
= 14 - 6 × 2 + 18 = 20
= 14 - 12 + 18
= 2 + 18
= 20 is equal to 20.
As we have found our answer, there is no need to check further options.
Hence, 6 + 14 × 2 - 18 = 20 is the correct answer.