If 9 × 2 = A and 21 ÷ 7…

Questions :

If 9 × 2 = A and 21 ÷ 7 = B, and A % B = (A × B) − 4, then what is A % B?

Options :

• 50
• 52
• 54
• 56

correct answer : a)

Explanation :

A = 18, B = 3 A % B = (18 × 3) − 4 = 54 − 4 = 50.