Reasoning & answer: CoT: So far, Jenny has spent 10 + 2 = 12 hours on the project. Thus, she has 20 - 12 = 8 hours to write her report.
The answer: 8
Question: Jenny is working on a school project. She spends 10 hours doing research for the project and 2 hours writing a proposal. If she has 20 hours total to work on the project, how many hours does she have left to write her report?

Reasoning & answer: CoT: There are 10 fish who need the special food because 50 x .2 = 10. These fish eat 15 ounces a day because 10 x 1.5 = 15. This food costs $45 because 15 x 3 = 45.
The answer: 45
Question: There are 50 goldfish in the pond. Each goldfish eats 1.5 ounces of food per day. 20% of the goldfish need to eat special food that costs $3 an ounce. How much does it cost to feed these fish?

Reasoning & answer: CoT: On Tuesday Buddy has 30 / 2 = 15 baseball cards. On Wednesday Buddy has 15 + 12 = 27 baseball cards. On Thursday Buddy buys 15 / 3 = 5 baseball cards. On Thursday Buddy has a total of 27 + 5 = 32 baseball cards.
The answer: 32
Question: On Monday Buddy has 30 baseball cards. On Tuesday Buddy loses half of them. On Wednesday Buddy buys 12 baseball cards. On Thursday he buys a third of what he had on Tuesday. How many baseball cards does he have on Thursday?

Reasoning & answer: CoT: If Karen's 128 crayons were twice as many as were in Beatrice's box, there were 128 / 2 = 64 crayons in Beatrice's box. And since Beatrice's box contained twice as many crayons as were in Gilbert's box of crayons, then Gilbert had 64 / 2 = 32 crayons. And since Gilbert had four times as many crayons as Judah, then Judah had 32 / 4 = 8 crayons.
The answer: 8
Question:
Karen had the giant box of crayons, containing twice as many crayons as were in Beatrice's box. But Beatrice's box contained twice as many crayons as were in Gilbert's box of crayons. And Gilbert had four times as many crayons as were in Judah's box of crayons. If Karen's box contained 128 crayons, how many crayons were in Judah's box?