Reasoning and answer: Olga has half as many blue fish as yellow ones, which means 12 * 0.5 = 6 blue fish. Green fish are twice as many as yellow ones, so in total there are 12 * 2 = 24 green fish. So all the fish sum up to 12 + 6 + 24 = 42.
The answer: 42
What was the question?
Question: Olga has an aquarium with fish in 5 different colors. There are 12 yellow ones, half as many blue ones, and twice as many green ones as yellow ones. How many fish does Olga have in her aquarium?
Susie earned $10 x 3 = $30 per day. Last week, she earned a total of $30 x 7 = $210. She spent $210 x 3 / 10 = $63 on make - up. While she spent $210 x 2 / 5 = $84 on her skincare products. Thus, she spent a total of $63 + $84 = $147 from her earnings. Therefore, Susie is left with $210 - $147 = $63 from her earnings last week.
The answer: 63
Reverse engineering the question: Susie babysits every day for 3 hours a day at the rate of $10 per hour. She spent 3/10 of the money she earned from last week to buy a make-up set. She then spent 2/5 of her money on her skincare products. How much is left from her earnings last week, in dollars?
Reasoning and answer: Let L = Leeward Center. Chrysler = L + 11. L + L + 11 = 35. 2L + 11 = 35. 2L = 24. Leeward = 12 floors. Chrysler = 12 + 11 = 23 floors. The Chrysler Building has 23 floors.
The answer: 23
What was the question?
Question: The Chrysler Building has 11 more floors than the Leeward Center. Together they have a total of 35 floors. How many floors does the Chrysler Building have?
He knows 50 people are showing up and he's hoping 40 more people will drop in for a total of 50 + 40 = 90 people. He's made 10 extravagant gift bags and 20 average bags for a total of 10 + 20 = 30 bags. He hopes 90 people will show up and has already made 30 bags so he needs to make 90 - 30 = 60 more gift bags.
The answer: 60
Reverse engineering the question: Carl is hosting an open house for his new business. He knows 50 people will show up and hopes that another 40 people will randomly show up. He's created 10 extravagant gift bags for the first 10 people who visit his shop. He's made average gift bags for 20 people but needs to make enough for everyone who visits to have one. How many more bags does he need to make?
Reasoning and answer: Mary's ticket costs $2 / ticket * 1 ticket = $2. Mary's children's tickets cost 3 tickets * $1 = $3. Together the tickets cost $2 + $3 = $5. After paying with a 20 - dollar bill, Mary will receive $20 - $5 = $15.
The answer: 15
What was the question?
Question: Mary goes with her 3 children to the circus. Tickets cost $2 for adults and $1 for children. Mary pays with a $20 bill. How much change will she receive?
Reasoning and answer: He wants to write 3 * 400 = 1200 pages. So it will take him 1200 / 20 = 60 days.
The answer: 60
What was the question?
Question:
John writes 20 pages a day. How long will it take him to write 3 books that are 400 pages each?