Jen bought a bag of cookies and ate three-quarters of the bag that day. The next day, she ate half of the remaining cookies. She has 8 cookies left on the third day. How many cookies were in the bag to start? Give the rationale and then the answer.
Let's think step by step. On the third day, Jen had half of the second day's cookies left, so on the second day, she had 8 * 2 = 16 cookies. On the second day, she had 1 / 4 of the first day's cookies left, so she started with 16 * 4 = 64 cookies in the bag.. The answer is: 64.

A taco truck is selling soft tacos for $2 and hard shell tacos for $5 during the lunch rush. The first group of customers is a family that buys four hard shell tacos and three soft tacos. The rest of the customers in the lunch rush only buy two soft tacos each. There were ten customers after the family. How many dollars did the taco truck make during the lunch rush? Give the rationale and then the answer.
Let's think step by step. The taco truck sold 3 + 2 * 10 = 3 + 20 = 23 soft tacos. It made 2 * 23 = $46 from soft tacos. It made 5 * 4 = $20 from hard shell tacos. Thus, the taco truck made 46 + 20 = $66 during the lunch rush.. The answer is: 66.

40 kids are running a race. 10% of them pass the finish line in less than 6 minutes. Three times that number finish in less than 8 minutes. 1/6 of the remaining kids take more than 14 minutes. How many kids take more than 14 minutes? Give the rationale and then the answer.
Let's think step by step. First find how many kids finish in under 6 minutes: 40 kids * 10% = 4 kids. Then triple that number to find how many finish in less than 8 minutes: 4 kids * 3 = 12 kids. Then subtract those two numbers from the total number of kids to find the number of remaining kids: 40 kids - 4 kids - 12 kids = 24 kids. Then divide that number by 6 to find how many kids take more than 14 minutes: 24 kids / 6 = 4 kids.. The answer is: 4.