Question: Mr. Angstadt has 120 students throughout the school day. Half of them are enrolled in Statistics. Of the students in Statistics, 90 percent are seniors. How many of Mr. Angstadt's students are seniors enrolled in Statistics?
Answer: Statistics: 120 / 2 = 60. Seniors in Stats:60(.90) = 54. The answer is 54.
[Question]Tas and his friends put up a t-shirt for sale. They ended up selling 200 t-shirts in 25 minutes. Half of the shirts were black and cost $30, while the other half were white and cost $25. How much money did they make per minute during the sale?
[Answer]The total revenue from black shirts was 100 * $30 = $3000. The total revenue from white shirts was 100 * $25 = $2500. The total revenue from all shirts sold was $3000 + $2500 = $5500. Tas and his friends ended up making $5500 / 25 minutes = $220 per minute. The answer is 220.
Q: My 2 cats had 3 female kittens and 2 male kittens. How many cats do I have in total?
A: There are 3 + 2 = 5 kittens. If you originally had 2 cats then you now have 2 + 5 = 7 cats in total. The answer is 7.
Question: Jo-Bob hopped into the hot air balloon, released the anchor rope, and pulled on the lift chain, which ignited the flame and provided the warm air that caused the balloon to rise. When the lift chain was pulled, the balloon would rise at a rate of 50 feet per minute. But when the chain was not being pulled, the balloon would slowly descend at a rate of 10 feet per minute. During his balloon ride, he pulled the chain for 15 minutes, then released the rope for 10 minutes, then pulled the chain for another 15 minutes, and finally released the chain and allowed the balloon to slowly descend back to the earth. During his balloon ride, what was the highest elevation reached by the balloon?
Answer: The first 15 - minute chain pull caused the balloon to rise 50 * 15 = 750 feet. Releasing the chain for 10 minutes caused the balloon to descend 10 * 10 = 100 feet. The second 15 - minute chain pull caused the balloon to rise another 50 * 15 = 750 feet. Thus, at the end of the second chain pull, when the balloon was at its highest elevation, the balloon had risen to an elevation of 750 - 100 + 750 = 1400 feet above the earth's surface. The answer is 1400.
[Question]Autumn was constantly misplacing her pencils. At the start of the school year, she purchased a pack of 20 pencils. In the first month of school, she misplaced 7 pencils, broke 3 pencils and had to throw them away, she found 4, and bought 2. How many pencils did Autumn have left?
[Answer]Autumn misplaced 7 and broke 3, so that lost her 7 + 3 = 10 pencils. Autumn found 4 pencils and bought 2, so she gained 4 + 2 = 6 pencils. She started with 20 pencils, lost 10 and gained 6 so she had 20 - 10 + 6 = 16 pencils left. The answer is 16.
[Question]James won a money prize at a charity raffle. He donated half of his winnings back to the charity, then spent $2 on a hot dog to celebrate his win. He had $55 left over. How many dollars did he win?
[Answer]
Let W be equal to James’s raffle winnings. He donated half his winnings, so he had W - W / 2 = W / 2 left. He then spent $2 on a hot dog, so W / 2 - 2 = $55. Thus, half his winnings is W / 2 = 55 + 2 = 57. James won W = 57 * 2 = $114. The answer is 114.