Q: Diana needs to bike 10 miles to get home. She can bike 3 mph for two hours before she gets tired, and she can bike 1 mph until she gets home. How long will it take Diana to get home?
A: In the first part of her trip, Diana will cover 2 hours * 3 mph = 6 miles. In the second part of her trip, Diana will need to cover an additional 10 miles - 6 miles = 4 miles. To cover 4 miles * 1 mph = will take Diana 4 hours. Total biking time to get home for Diana will be 2 hours + 4 hours = 6 hours. The answer is 6.
Question: Liza reads 20 pages in an hour, and Suzie reads 15 pages in an hour. How many more pages does Liza read than Suzie in 3 hours?
Answer: In 3 hours, Liza reads 20 x 3 = 60 pages. In 3 hours, Suzie reads 15 x 3 = 45 pages. Liza reads 60 - 45 = 15 pages more than Suzie. The answer is 15.
[Question]Maria is a saleswoman at a flower shop. On the first day, she sold 30 tulips and 20 roses. The next day, she doubled the previous day's sales. On the third day, she sold only 10% of the tulips sold on the second day and 16 roses. The price of one tulip is $2 and one rose is $3. How much did Maria earn over these three days?
[Answer]On the second day, Maria sold 30 * 2 = 60 tulips. She also sold 20 * 2 = 40 roses the second day. On the third day, Maria sold only 10 / 100 * 60 = 6 tulips. Over these three days Maria sold 30 + 60 + 6 = 96 tulips. She also sold 20 + 40 + 16 = 76 roses. So on the tulips Maria earned 96 * 2 = $192. And on roses Maria earned 76 * 3 = $228. In total, over these three days, Maria has earned 192 + 228 = $420. The answer is 420.
Q: Mike decides to develop a plot of land. He bought 200 acres for $70 per acre. After development, he sold half of the acreage for $200 per acre. How much profit did he make?
A: He bought the land for 200 * 70 = $14000. He sold 200 / 2 = 100 acres. He got 100 * 200 = $20,000 from selling this. So he made a profit of 20,000 - 14,000 = $6,000. The answer is 6000.
Question: James is running a fundraiser selling candy bars. Each box has 10 candy bars in it. He sells 5 boxes. He sells each candy bar for $1.50 and buys each bar for $1. How much profit does he make from these sales?
Answer: He makes 1.5 - 1 = $.5 from each candy bar. He sells 5 * 10 = 50 candy bars. So he makes 50 * .5 = $25. The answer is 25.
Q: In one of the building blocks at Oakland High there are 5 classes. Each class uses 2 whiteboards each and each whiteboard needs about 20ml of ink for a day's use. If ink costs 50 cents per ml, how much (in dollars) would it cost to use the boards for one day?
A:
Each ml of ink costs 50 cents so 20 ml costs 20 * 50 = 1000 cents. There are 2 whiteboards in each class so each class needs 2 * 1000 cents = 2000 cents. There are five classes in the block so they all need 5 * 1 * 2000 cents = 10000 cents. 100 cents make a dollar so 10000 cents make 10000 / 100 = $100. The answer is 100.