Q: There are 4 trains waiting at a train station and each train has 4 carriages. Each carriage has 3 rows of wheels and the rows of wheels have 5 wheels each. How many wheels are at the train station?
A: Each carriage has 3 rows of wheels * 5 wheels per row = 15 wheels. So each train has 4 carriages * 15 wheels per carriage = 60 wheels. There is therefore a total of 4 trains * 60 wheels per train = 240 wheels at the train station. The answer is 240.
Question: A cougar is sleeping for 4 hours at night, and a zebra for 2 hours more. How much time do both animals sleep in one week?
Answer: The zebra sleeps for 4 + 2 = 6 hours. During one week, the cougar sleeps 4 * 7 = 28 hours. And the zebra sleeps 6 * 7 = 42 hours. Both animals sleep for 28 + 42 = 70 hours during one week. The answer is 70.
[Question]Ephraim has two machines that make necklaces for his store. On Sunday the first machine made 45 necklaces. The second machine made 2.4 times as many necklaces as the first machine. How many necklaces were made in total on Sunday?
[Answer]The second machine made 2.4 times as many necklaces as the first machine, so the second machine made 2.4 * 45 = 108 necklaces on Sunday. In total, 45 + 108 = 153 necklaces were made on Sunday. The answer is 153.
Q: Dulce's father has eight orange trees on his farm. If each tree has 200 fruits and Dulce picks 2/5 of the oranges from each tree, calculate the total number of fruits remaining in all the trees.
A: The total number of oranges in all the trees before Dulce picked any is 8 trees * 200 oranges / tree = 1600 oranges. If each orange tree has 200 oranges, and Dulce picks 2 / 5 of each tree's oranges, she picks 2 / 5 * 200 oranges = 80 oranges. Since the total number of orange trees is eight, Dulce picked 8 trees * 80 oranges / tree = 640 oranges from all the trees. After picking 640 oranges from the trees, the total number of oranges remaining became 1600 oranges - 640 oranges = 960 oranges. The answer is 960.
Question: Jim had 365 trading cards. He gives 8 sets of cards to his brother, 5 sets of cards to his sister, and 2 sets of cards to his friend. How many cards did he give away, assuming 1 set has 13 trading cards?
Answer: Jim gave 8 * 13 = 104 trading cards to his brother. Jim gave 5 * 13 = 65 trading cards to his sister. Jim gave 2 * 13 = 26 trading cards to his friends. Jim gave away a total of 104 + 65 + 26 = 195 trading cards. The answer is 195.
Q: Tonya has $150.00 on her credit card. If she leaves any balance on her card at the end of the month, she is charged 20% interest. If she makes a $50.00 payment on her card, what will be the new balance?
A:
Her card has a $150.00 balance and she makes a $50.00 payment so the new balance is 150 - 50 = $100.00. She didn't pay it off so she is charged 20% interest on her $100.00 balance so the interest is .20 * 100 = $20.00. Her balance was $100.00 and she was charged $20.00 in interest so her new balance is 100 + 20 = $120.00. The answer is 120.