Question: John buys 20 candy bars. His brother Dave pays for 6 of them. If each candy bar costs $1.50, how much did John pay?
Answer: He paid for 20 - 6 = 14 candy bars. So he paid 14 * 1.5 = $21. The answer is 21.
[Question]Kathryn moved to a new city for the new job she had landed two weeks ago. Her rent was $1200, 1/2 of what she spent on food and travel expenses in a month. Luckily, she found a new friend Shelby, who moved in with her to share the rent. If her salary was $5000 per month, how much money remained after her expenses?
[Answer]If the rent is half what she spends on food and travel expenses, she spends 1200 * 2 = $2400 on food and travel costs. When her friend moved in and shared the rent costs with her, she started paying 1 / 2 * 1200 = $600 in rent costs. Her total monthly expenses is now 600 + 2400 = $3000. When she deducts her monthly expenses from her salary, she has $5000 - $3000 = $2000 remaining. The answer is 2000.
Q: There are one-third as many Ford trucks as Dodge trucks in the parking lot of the Taco Castle. But there are twice as many Ford trucks as Toyota trucks in this parking lot, and there are half as many Volkswagen Bugs as there are Toyota trucks in this same parking lot. If there are 5 Volkswagon Bugs in the parking lot, how many Dodge trucks are in the parking lot of the Taco Castle?
A: If there are half as many VW Bugs as there are Toyota trucks in this parking lot, and there are 5 VW Bugs, then there are 2 * 5 = 10 Toyota trucks in the parking lot. And if there are twice as many Ford trucks as Toyota trucks in this parking lot, then there are 2 * 10 = 20 Ford trucks in the parking lot. And if there are one - third as many Ford trucks as Dodge trucks in the parking lot, then there are 20 * 3 = 60 Dodge trucks in the parking lot of the Taco Castle. The answer is 60.
Question: A marathon is 26 miles. He can run the first 10 miles in 1 hour. For the remaining miles he runs at 80% that pace. How long does the race take?
Answer: There are 26 - 10 = 16 miles left for the rest of the race. He runs 10 * .8 = 8 miles per hour. So it takes him 16 / 8 = 2 hours. So in total it takes 1 + 2 = 3 hours. The answer is 3.
[Question]A mad scientist created a shrink ray device that, when used on anything, would cause it to shrink by 50%. The scientist, eager to use his new invention, looked through his house for something to shrink zap. The first thing he found and zapped was his wife, who at the time was carrying a tray containing 5 cups filled with coffee. If each coffee cup held 8 ounces of fluid before being zapped, how many ounces of coffee remained after his wife and the cups filled with coffee were shrink zapped?
[Answer]Before the zap, the wife held 5 cups, each with 8 ounces of coffee, for a total of 5 * 8 = 40 ounces of coffee. After the zap, the coffee cups and their contents were shrunk by 50%, for a total of 0.5 * 40 = 20 ounces of coffee. The answer is 20.
[Question]The ratio representing the age of Halima, Beckham, and Michelle is 4:3:7, respectively. If the total age for the three siblings is 126, calculate the age difference between Halima and Beckham.
[Answer]
The total ratio representing the age of the three siblings is 4 + 3 + 7 = 14. Halima's age is represented by the fraction 4 / 14, which means she is 4 / 14 * 126 = 36 years old. Beckhams age, from the total age of the three, is 3 / 14 * 126 = 27. The difference in age between Halima and Beckham is 36 - 27 = 9. The answer is 9.