[Question]Adam has 18 magnets. He gave away a third of the magnets, and he still had half as many magnets as Peter. How many magnets does Peter have?
[Answer]Adam gave away 18 / 3 = 6 magnets. Adam had 18 - 6 = 12 magnets left. Peter has 12 * 2 = 24 magnets. The answer is 24.
Q: Brian loves watching animal videos online. He watches a 4-minute video of cats. He then watches a video twice as long as the cat video involving dogs. He finishes up his video watching for the day by watching a video on gorillas that's twice as long as the previous two videos combined. How many minutes does Brian spend watching animal videos?
A: Brian begins by watching a 4 - minute video, and since the second video is twice as long that means the second video is 4 * 2 = 8 minutes. The first two videos combined therefore for a 4 + 8 = 12 minute run time. Since the third video is twice as long as the first two videos put together, that means it is 12 * 2 = 24 minutes in length. The total length of time spent is therefore 24 + 12 = 36 minutes. The answer is 36.
Question: A special school for deaf and blind students has a deaf student population three times the size of blind student population. If the number of deaf students is 180, how many students are there altogether?
Answer: Call the number of blind students b. There are 180 deaf students, which is three times the number of blind students, so 3b = 180. Multiplying both sides of the equation by 1 / 3 gives b = (1 / 3) * 180 = 60. The total number of students is 180 + 60 = 240. The answer is 240.
[Question]John builds a model rocket that can travel 500 ft in the air. He builds a second rocket that can travel twice as high. What is the combined height of the two rockets?
[Answer]The second rocket goes 500 * 2 = 1000 feet. So the total height is 500 + 1000 = 1500 feet. The answer is 1500.
Q: Tom's puts 30 miles per day on his bike for the first 183 days of the year. For the rest of the days of the year he goes 35 miles per day. How many miles does he drive for the year?
A: For the first 183 days he drives 183 * 30 = 5490 miles. There are 365 - 183 = 182 days left in the year. He drives 35 * 182 = 6370 for those days. So in total he drives 5490 + 6370 = 11,860. The answer is 11860.
Question: Barney washes his kitchen towels once a week. He owns eighteen towels and uses two at a time that he changes to clean towels daily. He missed one week of laundry. How many days the following week will Barney not have clean towels?
Answer:
Barney uses 2 clean towels every day, so he uses 2 * 7 = 14 towels a week. He missed one week of laundry, so he would need 2 * 14 = 28 towels for 2 weeks. He owns 18 towels, so he has 28 - 18 = 10 less than he needs. Thus, Barney will not have clean towels on 10 / 2 = 5 days. The answer is 5.