Q: A watermelon stand sold 46 watermelons. Seventeen customers bought one melon, three customers bought three melons, and the rest bought two melons. How many customers bought two watermelons?
A: The customers that bought one watermelon bought 1 * 17 = 17 melons. The customers that bought three melons bought 3 * 3 = 9 melons. The stand sold 46 - 17 - 9 = 20 melons to customers who bought 2 melons. Thus, 20 / 2 = 10 customers bought two watermelons. The answer is 10.
Question: Frank and his friends Betty and Bill went to their farm and picked oranges to eat. Betty picked 15 oranges and Bill picked 12 oranges. Frank picked three times the number that Betty and Bill picked combined. Frank then planted 2 seeds from each of his oranges into the ground and waited 20 years for each seed to turn into a beautiful orange tree. If each orange tree contains 5 oranges for Frank's son Philip to pick, how many oranges are there for Philip to pick in total?
Answer: Together, Betty and Bill picked 15 + 12 = 27 oranges. Frank picked 3 * 27 = 81 oranges. Frank planted 2 * 81 = 162 seeds in total, so there are 162 orange trees 20 years later. Philip can then pick 162 * 5 = 810 oranges. The answer is 810.
[Question]Brad's car broke down on an isolated road. At the time, Brad was traveling with Jim and Marcus. So, the three decided to push the car back into town, which was 10 miles away. For the first three miles, Brad steered as Jim and Marcus pushed at a speed of 6 miles per hour. Then, for the next 3 miles, Jim steered, as Brad and Marcus pushed at a speed of 3 miles per hour. For the last four miles, Marcus steered as Brad and Jim pushed at a speed of 8 miles per hour. How long did it take, in hours, to push the car back to town?
[Answer]Three miles at 6 miles per hour is 3 / 6 = 1 / 2 hours. Then, 3 miles at 3 miles per hour is 3 / 3 = 1 hour. The last 4 miles at 8 miles per hour is 4 / 8 = 1 / 2 hour. In total, it took them 1 / 2 + 1 + 1 / 2 = 2 hours to push the car back to town. The answer is 2.
Q: An animal shelter recently took in twelve cats. The shelter already had half that number of cats. Two days later, three had been adopted. The next day, one of the cats had five kittens, and one person arrived to pick up one of the cats that was their missing pet. How many cats does the shelter have now?
A: The shelter started with 12 / 2 = 6 cats. The cats they took in increased the number to 12 + 6 = 18 cats. Three cats were adopted, so they had 18 - 3 = 15 cats. One cat had 5 kittens, which increased the number of cats to 15 + 5 = 20 cats. The pet owner came to get his missing cat, so they now have 20 - 1 = 19 cats. The answer is 19.
Question: A store gives a 10% discount for the amount of the sell that was over $1000. John buys 7 items that each cost $200. What does his order cost after the discount?
Answer: His order came out to 7 * 200 = $1400. So there was 1400 - 1000 = $400 that qualified for the discount. So his discount saved 400 * .1 = $40. So his purchase came out to 1400 - 40 = $1360. The answer is 1360.
Q: Mark and his sister Chris both leave their house for school at the same time. Mark travels at the same speed as Chris, who walks 3 miles per hour. After walking 3 miles Mark has to turn around and go home because he forgot his lunch. If the distance from their house to the school is 9 miles, how much longer does Mark spend walking than Chris?
A:
First find the total number of miles Mark walks to get his lunch by multiplying the distance he walks back to the house by 2: 3 miles * 2 = 6 miles. Then find the total distance Mark walks by adding that distance to the distance between the house and the school: 6 miles + 9 miles = 15 miles. Now divide the total distance Mark walks by his speed to find how many hours he spends walking: 15 miles / 3 miles / hour = 5 hours. Now divide the total distance Chris walks by her speed to find the total time she spends walking: 9 miles / 3 miles / hour = 3 hours. Now subtract the time Chris spends walking from the time Mark spends walking to find the difference: 5 hours - 3 hours = 2. The answer is 2.