By interchanging the given two signs and numbers which of the following equation will be not correct?
÷ and ×, 1 and 3
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 4 × 3 – 1 + 8 ÷ 2 = 9.
Given conditions: ÷ and ×, 1 and 3
Option 2: 4 × 3 – 1 + 8 ÷ 2 = 9
After interchanging the expression becomes:
4 ÷ 1 – 3 + 8 × 2 = 9
4 – 3 + 8 × 2
4 - 3 + 16
17 = 9