Question: Cheryl got angry with her sister and decided to run away from home. She walked 2 miles every hour for 3 hours. Then she got homesick and walked back home. How many miles did Cheryl walk in total?
Answer: Step-by-step reasoning process: Cheryl walked 2 miles x 3 hours = 6 miles. Once Cheryl was 6 miles away, she walked back home, another 6 miles, so she walked 6 + 6 = 12 miles.
So the answer is 12.

Question: The ratio of boys to girls in a classroom is 3:5. If there are 4 more girls than boys, how many students are in the classroom?
Answer: Step-by-step reasoning process: Since the ratio of boys to girls is 3:5, then the class is divided into 3 + 5 = 8 parts. The girls have 5 - 3 = 2 parts more than the boys. Since 2 parts are equal to 4, then 1 part is equal to 4 / 2 = 2 students. Hence, there are 8 parts x 2 = 16 students.
So the answer is 16.

Question: The difference between the price of an orange and the price of a pear equals the price of a banana. If the total cost of an orange and a pear is $120 and a pear costs $90, calculate the total price of buying 200 bananas and twice as many oranges as bananas.
Answer: Step-by-step reasoning process: If the total cost of an orange and a pear is $120, and a pear costs $90, an orange costs $120 - $90 = $30. Since the difference between the price of an orange and a pear is the price of a banana, a banana is sold at $90 - $30 = $60. To buy 200 bananas, you'll pay $60 * 200 = $12000. When you twice as many oranges as bananas, you buy 2 * 200 = 400 oranges. The total cost of buying 400 oranges is 400 * 30 = $12000. The total price of buying 200 bananas and twice as many oranges as bananas is $12000 + $12000 = $24000.
So the answer is 24000.

Question: Roberto and Valerie are jumping rope at recess. Roberto can skip 4,200 times an hour. Valerie can skip 80 times a minute. If they jump rope for fifteen minutes straight, how many skips will they total?
Answer:
Step-by-step reasoning process: Roberto skips 70 times per minute because 4,200 / 60 = 70. Together they skip 150 times a minute. They will skip 2,250 times because 150 x 15 = 2,250.
So the answer is 2250.