By interchanging the given two signs and numbers which of the following equation will be not correct

By interchanging the given two signs and numbers which of the following equation will be not correct?

÷ and ×, 1 and 3

A.            6 ÷ 3 – 1 + 4 × 2 = 5

B.            4 × 3 – 1 + 8 ÷ 2 = 9

C.            5 – 8 × 3 + 9 ÷ 1 = 24

D.            6 + 4 – 9 × 3 ÷ 1 = –17

Sol:

Interchange and check with option 1

Given in option 1

6 ÷ 3 – 1 + 4 × 2 = 6 × 1 – 3 + 4 ÷ 2 = 6 – 3 +2 = 5 Correct

Interchange and check with option 2

Given in option 2

4 × 3 – 1 + 8 ÷ 2 = 9

Interchanging ÷ and ×, 1 and 3

4 ÷ 1 – 3 + 8 × 2 = 4 – 3 + 16 = 17 Not correct.