Answer the following question.
Doc's Pizza contains 6 pieces of pizza. Ten fourth-graders each bought 20 pizzas from Doc's Pizza and put them in their box. How many pieces of pizza are the children carrying in total?
Step-by-step reasoning process: If Each fourth - grader bought 20 pizzas, with each pizza having 6 pieces, each fourth - grader had a total of 20 * 6 = 120 pieces of pizza in their box. Ten fourth - graders each bought 20 pizzas, and since the 20 pizzas had 120 pieces, the total number of pizzas in the students' boxes is 120 * 10 = 1200 pieces.
The answer is 1200.

Answer the following question.
On Sunday Alice bought 4 pints of strawberry ice cream. The next day she went back and bought three times that number of pints. On Tuesday she bought one-third of the number of pints she bought the day before. On Wednesday she returned half of the pints she bought the day before because they were expired. How many pints of ice cream did she have on Wednesday?
Step-by-step reasoning process: On Monday she bought 4 * 3 = 12 pints. On Tuesday she bought 12 / 3 = 4 pints. Before she returned any she had 4 + 12 + 4 = 20 pints. She returned 4 / 2 = 2 pints. After returning she had 20 - 2 = 18 pints.
The answer is 18.

Answer the following question.
James buys 20 pounds of beef and half that much pork. He uses 1.5 pounds of meat to make meals at his restaurant. Each meal sells for $20. How much money did he make?
Step-by-step reasoning process: He bought 20 / 2 = 10 pounds of pork. So he has 20 + 10 = 30 pounds of meat. That means he can make 30 / 1.5 = 20 meals. So he makes 20 * 20 = $400.
The answer is 400.

Answer the following question.
Chrystal’s vehicle speed is 30 miles per hour. Ascending the mountain decreases its speed by fifty percent, and descending the mountain increases its speed by twenty percent. If the distance going to the top of the mountain is 60 miles and the distance going down to the foot of the mountain is 72 miles, how many hours will Crystal have to pass the whole mountain?
Step-by-step reasoning process: The vehicle's speed decreases to 30 x 0.50 = 15 miles per hour when ascending to the top of the mountain. So, the total time Crystal will have to spend going to the top of the mountain is 60 / 15 = 4 hours. And the speed of the vehicle increases by 30 x 0.20 = 6 miles per hour when going down to the foot of the mountain. So, the total speed of the vehicle when going down is 30 + 6 = 36 miles per hour. Thus, Chrystal will have to spend 72 / 36 = 2 hours to descend from the mountain. Therefore, the total hours she will spend to pass the whole mountain is 4 + 2 = 6 hours.
The answer is 6.