[Question]To buy a book, you pay $20 for each of the first 5 books at the supermarket, and for each additional book you buy over $20, you receive a discount of $2. If Beatrice bought 20 books, how much did she pay at the supermarket?
[Answer]For the first five books, the total cost is $20 * 5 = $100. For every additional book over $5, you pay $2 less, totaling to $20 - $2 = $18. Beatrice bought 20 books, so the number of books at which she received the $2 discount is 20 - 5 = 15 books. For the 15 books, Beatrice paid 15 * $18 = $270. In total, Beatrice paid $100 + $270 = $370 for the 20 books. The answer is 370.
Q: Lemuel is a basketball player. In one of the games, he made 2-point shots 7 times. He also made 3-points shots thrice. How many points, in total, did he make in that game?
A: Lemuel made 2 x 7 = 14 points from his 2 - point shots. He also made 3 x 3 = 9 points from his 3 - point shots. Therefore, he made a total of 14 + 9 = 23 points in that game. The answer is 23.
Question: 20 kids in preschool are ready for a nap. 1/2 of the kids fall asleep within the first 5 minutes. Then half of the kids remaining fall asleep within another 5 minutes. How many kids are still awake?
Answer: In a class with 20 kids, 1 / 2 of the students have already fallen asleep so 20 / 2 = 10 kids are already asleep. We start with 20 kids awake and 10 are already asleep so 20 - 10 = 10 kids are still awake. 1 / 2 of these 10 kids fall asleep next meaning there are 10 / 2 = 5 students still awake. The answer is 5.
[Question]Jack has 42 pounds, 11 euros, and 3000 yen. If there are 2 pounds per euro and 100 yen per pound, how much does Jack have in yen?
[Answer]First convert the euros to pounds: 11 euros * 2 pounds / euro = 22 pounds. Then add that amount to the amount Jack has in pounds: 22 pounds + 42 pounds = 64 pounds. Then convert the pounds to yen: 64 pounds * 100 yen / pound = 6400 yen. Then add that amount to the amount Jack has in yen: 6400 yen + 3000 yen = 9400 yen. The answer is 9400.
Q: Michael saved 5 of his cookies to give Sarah, who saved a third of her 9 cupcakes to give to Michael. How many desserts does Sarah end up with?
A: Sarah saved 1 / 3 of her 9 cupcakes to give Michael, so she has 2 / 3 x 9 = 6 cupcakes left. Michael saves 5 of his cookies for Sarah, which she adds to her 6 cupcakes. Sarah has 5 + 6 = 11 desserts. The answer is 11.
Question: Florida is starting a promotion where every car that arrives gets one orange per passenger. A family of 4 arrives and gets their oranges. They had planned to stop for a snack later where they would spend $15 in total, but now that they have the oranges they don't have to buy them at the stop. When they get to the stop they see that the oranges would've cost $1.5 each. What percentage of the money they planned to spend did they save instead?
Answer:
The oranges would've cost $6 because 4 x 1.5 = 6. The proportion of their original spending plan was .4 because 6 / 15 = .4. They saved 40% of the money they planned to spend because .4 x 100 = 40. The answer is 40.