[Question]Edith is a receptionist at a local office and is organizing files into cabinets. She had 60 files and finished organizing half of them this morning. She has another 15 files to organize in the afternoon and the rest of the files are missing. How many files are missing?
[Answer]Edith has already organized 60 files / 2 = 30 files in the morning. She has files left to organize so she must still have 30 + 15 = 45 files in the office. This means there are 60 total files – 45 organized files = 15 missing files. The answer is 15.
Q: Xander read 20% of his 500-page book in one hour. The next night he read another 20% of the book. On the third night, he read 30% of his book. How many pages does he have left to read?
A: The first night he read 20% of his 500 - page book so he read .20 * 500 = 100 pages. The book is 500 pages and he read 100 so that leaves 500 - 100 = 400 pages. The second night he reads 20% of the 500 pages so he read .20 * 500 = 100 pages. The book is now 400 pages and he read 100 so that leaves 400 - 100 = 300 pages. The third night he read 30% of the book so he read .30 * 500 = 150 pages. The book is now 300 pages and he read 150 pages so he has 300 - 150 = 150 pages left to read. The answer is 150.
Question: If 2 machines in a factory make 10 cell phones each minute, how many machines would it take to make 50 cell phones a minute?
Answer: First, we need to determine how many cell phones each machine makes per minute. We do this by performing 10 / 2 = 5 cell phones each minute per machine. Next, we determine how many machines are needed in total by dividing the desired outcome of 50 by the rate of production of an individual machine, finding 50 / 5 = 10 machines needed. The answer is 10.
[Question]A kiddy gift shop sells bracelets at $4 each, keychains at $5 each, and coloring books at $3 each. Paula and Olive want to buy presents for their friends. Paula buys two bracelets and a keychain, while Olive buys a coloring book and a bracelet. How much do Paula and Olive spend in total?
[Answer]Two bracelets cost 2 x $4 = $8. Thus, Paula spends $8 + $5 = $13. Olive spends $3 + $4 = $7. Therefore, Paula and Olive spend $13 + $7 = $20 in all. The answer is 20.
Q: Pierre decides to bring his mother out for ice cream. His treat. Each scoop is $2. If he gets 3 scoops and his mom gets 4, what is the total bill?
A: His ice cream is $6 because 3 x 2 = 6. His mom's is $8 because 4 x 2 = 8. The total is $14 because 6 + 8 = 14. The answer is 14.
Question: Sam spends sixty minutes studying Science, eighty minutes in Math, and forty minutes in Literature. How many hours does Sam spend studying the three subjects?
Answer:
The total number of minutes he studies the three subjects is 60 + 80 + 40 = 180 minutes. Therefore, Sam spends 180 / 60 = 3 hours. The answer is 3.