[Question]A pack of pretzels costs $4, while a pack of chips is 75% more expensive. Maciek went and bought two packets of chips and two packets of pretzels. How much did he pay for his purchases?
[Answer]One pack of chips is 75 / 100 * 4 = $3 more expensive than a pack of pretzels. That means one pack of chips costs 4 + 3 = $7. So Maciek paid 4 * 2 = $8 for the pretzels. He also paid 7 * 2 = $14 for the chips. In total Maciek paid 8 + 14 = $22 for his purchases. The answer is 22.
Q: James decides he needs to start eating more vegetables. He starts by eating a quarter pound of asparagus and a quarter pound of broccoli per day. After 2 weeks, he doubles that amount and adds 3 pounds of kale per week. How many pounds of vegetables does he eat a week after adding the kale?
A: He starts with .25 + .25 = .5 pounds of vegetables a day. After doubling that it goes to .5 * 2 = 1 pound a day. So he eats 1 * 7 = 7 pounds of asparagus and broccoli per week. So he eats a total of 7 + 3 = 10 pounds of vegetables a week. The answer is 10.
Question: Molly got a bike for her thirteenth birthday. She rode her bike 3 miles a day, every day, until she turned 16. How many miles did Molly ride on her bike?
Answer: Molly rode for 16 13 = 3 years. She rode for 3 years x 365 days = 1,095 days. She rode a total of 3 miles x 1,095 days = 3,285 miles. The answer is 3285.
[Question]A magician has a top hat with 20 red marbles and a top hat with 30 blue marbles. If he takes away 3 red marbles and four times as many blue marbles as red marbles (without looking), how many marbles in total does he have left?
[Answer]He had 20 red marbles and took away 3 leaving 20 - 3 = 17 red marbles. He took 4 times as many blue marbles as red marbles which is 4 * 3 = 12 blue marbles. He took 12 blue marbles from 30 leaving 30 - 12 = 18 blue marbles. He now has 17 + 18 = 35 marbles left. The answer is 35.
Q: James was 2/3s as tall as his uncle who is 72 inches. He gets a growth spurt that makes him gain 10 inches. How much taller is his uncle than James now?
A: He was 72 * 2 / 3 = 48 inches tall before. He is now 48 + 10 = 58 inches. So his uncle is 72 - 58 = 14 inches taller. The answer is 14.
Question: Twice Betty's age is the cost of a pack of nuts. Doug, Betty's friend, is 40 years old. If the sum of their ages is 90, and Betty wants to buy 20 packs of the nuts, calculate the amount of money she'll pay for the packs of nuts.
Answer:
If Doug, Betty's friend, is 40 years old, and the sum of their ages is 90, Betty is 90 - 40 = 50 years old. Since twice Betty's age is the cost of a pack of nuts, a pack of nuts is sold at 2 * $50 = $100. If Betty wants to buy 20 packs of the nuts, she'll have to pay 20 * $100 = $2000. The answer is 2000.