[Question]Marcel bought a pen for $4, and a briefcase for five times the price. How much did Marcel pay for both items?
[Answer]The cost of the briefcase was 5 * 4 = $20. So for both items Marcel paid 4 + 20 = $24. The answer is 24.
Q: Amanda had 10 notebooks. This week, she ordered 6 more and then lost 2. How many notebooks does Amanda have now?
A: This week, Amanda added 6 notebooks - 2 notebooks = 4 notebooks. Now, Amanda has 10 notebooks + 4 notebooks = 14 notebooks. The answer is 14.
Question: Mark is 7 years older than Amy, who is 15. How old will Mark be in 5 years?
Answer: Mark is 15 years + 7 years = 22 years old. In 5 years, he will be 22 years + 5 years = 27 years old. The answer is 27.
[Question]Kyle bikes for 2 hours to work every day. Ten times the time he takes to travel to work and back is the same as the cost of buying a pack of snacks (in dollars). How much will Ryan pay, in dollars, to buy 50 packs of snacks?
[Answer]A round trip to work and back takes 2 * 2 = 4 hours. Ten times the time Kyle takes to travel to work and back is the same as the cost of buying a pack of snacks, meaning the packs are sold at 4 * 10 = $40 each. Ryan will pay $40 * 50 = $2000 to buy 50 packs of snacks?. The answer is 2000.
Q: The American swallow can lift into the air and carry a maximum of 5 pounds of weight, while the European swallow can lift and carry twice the weight as the American swallow. If there was a flock of 90 swallows, containing twice as many American as European swallows, what is the maximum combined weight the flock can carry?
A: If "x" is the number of European swallows, then, for every one European swallow, there would be 2x American swallows. Thus, the total number of swallows would be 2x + x = 90 swallows. Thus, the number of European swallows x = 30. And the number of American swallows is 90 - 30 = 60. A European swallow can carry twice what an American swallow can carry, or 2 * 5 = 10 pounds. 30 European swallows can carry a maximum of 30 * 10 = 300 pounds. 60 American swallows can carry a maximum of 60 * 5 = 300 pounds. Thus, a flock of 90 birds, with 30 European and 60 American swallows, can carry 300 + 300 = 600 pounds. The answer is 600.
Question: Mr. Salazar had seven dozen oranges. He reserved 1/4 of it for his friend and was able to sell 3/7 of the remaining yesterday. Today, he saw four rotten oranges. How many oranges are left to be sold today?
Answer:
Mr. Salazar had 7 x 12 = 84 oranges. He reserved 84 x 1 / 4 = 21 oranges for his friend. Ha had 84 - 21 = 63 oranges to be sold yesterday. But only 63 x 3 / 7 = 27 oranges were sold yesterday. So, he had 63 - 27 = 36 oranges left. Since four oranges are rotten, then only 36 - 4 = 32 oranges are left to be sold today. The answer is 32.