By Interchanging the given two numbers (not digits) which of the following equation will be not correct?
7 and 3
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 7 × 8 - 9 + 3 ÷ 1 = 30.
Given: 7 and 3
Option 4) 7 × 8 - 9 + 3 ÷ 1 = 30
By Interchanging the given two numbers (not digits):
3 × 8 - 9 + 7 ÷ 1 = 30
3 × 8 - 9 + 7 = 30
24 - 9 + 7 = 30
31 - 9 = 30
22 = 30
Thus, option 4 equation will be not correct.