Question

Maria is planning a party. Nancy, her friend, suggests that she should order 3 pizzas for every 7 people. If she is expecting 21 people at the party, how many pizzas should she order?

A. 42
B. 9
C. 49
D. 21

Answer 1

B. 9

Because 3 x 7 = 21

Answer 2

21:7=3
This means that she has to buy those 3 pizzas 3 times,so..
3*3=9
And the answer is 9