By interchanging the given two signs which of the following equation will be not correct?
+ and –
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 3 × 2 – 72 ÷ 6 + 8 = 18.
Given conditions: + and –
Option 3: 3 × 2 – 72 ÷ 6 + 8 = 18
After interchanging the expression becomes:
3 × 2 + 72 ÷ 6 - 8 = 18
3 × 2 + 12 - 8 = 18
6 + 12 - 8= 18
10 is not equal to 18.