Question

If Sammy eats 6/7 of a pizza in 2/21 of an hour, how many pizzas will he eat in one hour?

Answer 1

9

Explanation:

Sammy's rate of eating pizza is ...

pizza/hour = (6/7)/(2/21) = (18/21)/(2/21) = 18/2 = 9

Sammy eats pizza at the rate of 9 pizzas in one hour.

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Comment on the question

Sammy may only eat 6/7 of a pizza in an hour, because he is no longer hungry after eating that much.