[Question]When Matty was born, the cost of a ticket to Mars was $1,000,000. The cost is halved every 10 years. How much will a ticket cost when Matty is 30?
[Answer]First find the total number of times the cost is halved: 30 years / 10 years / halving = 3 halvings. Then halve the cost once: $1,000,000 / 2 = $500,000. Then halve the cost a second time: $500,000 / 2 = $250,000. Then halve the cost a third time: $250,000 / 2 = $125,000. The answer is 125000.
Q: Shelly and Sam love to go deep sea fishing for swordfish. Each time they go deep sea fishing, Shelly catches 2 less than five swordfish, and Sam catches one less swordfish than Shelly. If Sam and Shelly go fishing 5 times, how many swordfish do they catch in total?
A: Shelly catches 2 less than five swordfish each time they go fishing, for a total of 5 - 2 = 3 fish per trip. Sam catches one less swordfish than does Shelly on each trip, or a total of 3 - 1 = 2 swordfish per trip. Together, they catch a total of 3 + 2 = 5 swordfish on each trip. If Sam and Shelly go fishing 5 times, they catch a total of 5 * 5 = 25 swordfish. The answer is 25.
Question: Lance wants to finish reading a 100 page book in 3 days. Yesterday, he started to read 35 pages. Today, he read 5 fewer pages than yesterday. How many pages should he read tomorrow to finish the book?
Answer: Lance read 35 - 5 = 30 pages today. So he read a total of 35 + 30 = 65 pages in 2 days. Thus, he should read 100 - 65 = 35 pages tomorrow. The answer is 35.
[Question]Trace has five shopping bags that weigh the same amount as Gordon's two shopping bags. One of Gordon's shopping bags weighs three pounds and the other weighs seven. Trace's shopping bags all weigh the same amount. How many pounds does one of Trace's bags weigh?
[Answer]Gordon's bags weigh 3 + 7 = 10 pounds. Trace's five bags all weigh the same amount, so each bag weighs 10 / 5 = 2 pounds. The answer is 2.
Q: Cheryl needs 4 cups of basil to make 1 cup of pesto. She can harvest 16 cups of basil from her farm every week for 8 weeks. How many cups of pesto will she be able to make?
A: She harvests 16 cups of basil every week for 8 weeks for a total of 16 * 8 = 128 cups of basil. She needs 4 cups of basil to make 1 cup of pesto and she has 128 cups of basil so she can make 128 / 4 = 32 cups of pesto. The answer is 32.
Question: It takes 15 minutes for Dante to go to Hidden Lake. From Hidden Lake, he has to walk back to the Park Office and it takes him 7 minutes. When he arrives there, he will have been gone from the Park Office 32 minutes altogether. If he had walked to the Lake Park restaurant from the Park office before taking the 15 minute walk to Hidden Lake, how long is the walk from Park Office to the Lake Park restaurant?
Answer:
If it takes 15 minutes for Dante to go to Hidden Lake and 7 minutes to walk back to the Park Office, he spends a total of 15 + 7 = 22 minutes on the trip. When Dante arrives at the Park Office, he will have been gone from the Park Office 32 minutes altogether, and since he passed by the Lake Park restaurant from The Park Office, his walk from Park Office to the Lake Park restaurant took 32 - 22 = 10 minutes. The answer is 10.