If 16 + 4 = A and 21 ÷ 3…

Questions :

If 16 + 4 = A and 21 ÷ 3 = B, and A % B = (A × B) − 7, then what is A % B?

Options :

• 133
• 135
• 137
• 140

correct answer : a)

Explanation :

A = 20, B = 7 A % B = (20 × 7) − 7 = 140 − 7 = 133.