Question: A train takes 2 hours longer to go an equal distance of a car. If the car and the train leave station A at the same time, and the car reaches station B 4.5 hours later, calculate the combined time the car and the train take to reach station B.
Answer: Since the train takes 2 hours longer to go an equal distance as the car, to reach station B, the train took 4.5 + 2 = 6.5 hours. Together, the train and the car take a total of 6.5 + 4.5 = 11 hours to travel from station A to station B. The answer is 11.
[Question]Harold's fancy wrapping paper can wrap 5 shirt boxes or 3 XL boxes. For the upcoming holiday, he has 20 shirt boxes to wrap and 12 XL boxes to wrap. If each roll of wrapping paper costs $4.00 per roll, how much will he spend to wrap all of the boxes?
[Answer]1 roll can wrap 5 shirt boxes and he has 20 shirts boxes to wrap so he needs 20 / 5 = 4 rolls of wrap. 1 roll can wrap 3 XL boxes and he has 12 XL boxes to wrap so he needs 12 / 3 = 4 rolls or wrap. All total he needs 4 + 4 = 8 rolls of wrap. Each roll costs $4.00 and he needs 8 rolls so it will cost him 4 * 8 = $32.00 in wrapping paper. The answer is 32.
Q: Ms. Hatcher teaches 20 third-graders and a number of fourth-graders that is twice the number of third-graders. Her co-teacher asked her to substitute for her fifth-grade class that has half as many students as the number of third-graders. How many students did Ms. Hatcher teach for the day?
A: Ms. Hatcher taught 20 x 2 = 40 fourth graders for the day. She taught 20 / 2 = 10 fifth - graders as a substitute teacher for the day. Therefore, she taught 20 + 40 + 10 = 70 students for the day. The answer is 70.
Question: Angel has written letters to all of her pen pals and is putting all of the letters in envelopes. Most of the letters are put into large envelopes and the remaining 20 letters are put into small envelopes. The large envelopes each contain 2 letters each. If Angel has written a total of 80 letters, how many large envelopes did she use?
Answer: As some of the letters are in small envelopes, there must be 80 total letters – 20 letters in small envelopes = 60 letters in large envelopes. Angel therefore used 60 letters / 2 letters per large envelope = 30 large envelopes. The answer is 30.
[Question]Matt has a peanut plantation that is 500 feet by 500 feet. 1 square foot of peanuts can make 50 grams of peanuts. If it takes 20 grams of peanuts to make 5 grams of peanut butter and 1 kg of peanut butter sells for $10 how much does he make from his plantation?
[Answer]His plantation is 500 * 500 = 250,000 square feet. That means he gets 250,000 * 50 = 12,500,000 grams of peanuts. So he makes 12,500,000 * 5 / 20 = 3,125,000 grams of peanut butter. So he has 3,125,000 / 1000 = 3125 kg of peanut butter. That means it sells for 3125 * 10 = $31,250. The answer is 31250.
[Question]Samara and three of her friends heard alligators spotted on the local river and decided to join a search organized by the wildlife service to capture the animals. After searching the whole day, Samara had seen 20 alligators while her friends had seen an average of 10 alligators each. Calculate the total number of alligators Samara and her friends saw.
[Answer]
Each of Samara's friends saw an average of 10 alligators each, a total of 3 * 10 = 30 alligators. Together, Samara and her friends saw 30 + 20 = 50 alligators. The answer is 50.