Question

An oven can cook 3 thin crust pizzas in an hour or 1 deep dish pizza in a hour. If you have one oven, how much time do you need to make 12 thin crust pizzas and 4 deep dish pizzas?

A. 10 hours
B. 3 hours
C. 6 hours
D. 8 hours

Answer 1

To make all the pizzas, it would take 4 hours for the 12 thin crust pizzas and 4 hours for the 4 deep dish pizzas, totaling 8 hours. The correct answer is D. 8 hours.

Step-by-step explanation:

The student's question pertains to calculating the total time needed to bake pizzas in an oven with two different baking times. One oven can cook 3 thin crust pizzas in an hour or 1 deep dish pizza in an hour. To make 12 thin crust pizzas, we would divide the total number of thin crust pizzas by the number cooked per hour: 12 thin crust pizzas ÷ 3 pizzas/hour = 4 hours.

For the deep dish pizzas, since the oven can cook only 1 per hour, it would take exactly as many hours as the number of deep dish pizzas: 4 deep dish pizzas × 1 pizza/hour = 4 hours.

When we add these two times together, 4 hours + 4 hours, we get a total of 8 hours needed to make all the pizzas. So, the correct answer is D. 8 hours.