The 10 ounce bottle costs $.1 an ounce because 1 / 10 = .1. The 16 ounce bottle costs $.125 an ounce because 2 / 12 = .125. The 25 ounce bottle costs $.125 an ounce because 2.5 / 20 = .125. The 50 ounce bottle costs $.1 an ounce because 5 / 50 = .1. The 200 ounce bottle cost $.05 an ounce because 10 / 200 = .05. The 200 ounce bottle is the cheapest per ounce because .05 < .08 < .1 < .125. He buys 1 bottle of ketchup because 10 / 10 = 1.
The answer: 1
Reverse engineering the question: Billy's mom sends him to get ketchup. She gives him $10 and tells him to get the best deal on ketchup that he can and to spend all $10 on ketchup. He finds a bottle with 10 oz that cost $1 each. He finds a bottle that costs $2 that contains 16 ounces. He finds a bottle with 25 ounces that costs $2.5. He finds a $5 bottle that contains 50 ounces. Finally, he finds a $10 bottle with 200 ounces. How many bottles of ketchup does he buy?
Reasoning and answer: Jeff has 16 - 4 = 12GB left over on his phone. Therefore, he has 12 * 1000 = 12,000MB. Therefore, he can store 12,000 / 30 = 400 songs.
The answer: 400
What was the question?
Question: Jeff has 16 GB of storage on his phone. He is already using 4 GB. If a song takes up about 30MB of storage, how many songs can Jeff store on his phone? (There are 1000 MB in a GB).
She had bought 3 + 5 + 2 = 10 candies over the week. She has only 4 left which means she ate 10 - 4 = 6 candies during the week.
The answer: 6
Reverse engineering the question: Dr. Harry wants to know how many candies Susan consumed during the week. Susan tells him she bought 3 on Tuesday, 5 on Thursday, 2 on Friday. If she has only 4 of them left, how many did she eat?
Reasoning and answer: Kiley takes 48 / 4 = 12 crayons. 48 - 12 = 36 crayons remain. Joe takes 36 / 2 = 18 crayons. 36 - 18 = 18 crayons left.
The answer: 18
What was the question?
Question: There are 48 crayons in the box. Kiley takes 1/4 of them away. Joe takes away half of the remaining crayons, how many crayons are left?
Each tree A gives her six good oranges a month 10 x .6 = 6. Each tree B gives her five good oranges a month because 15 x (1 / 3) = 5. On average, a tree gives her 5.5 oranges a month because .5(6) + .5(5) = 5.5. She has ten total trees because 55 / 5.5 = 10.
The answer: 10
Reverse engineering the question: Salaria is growing oranges this summer. She bought two types of trees. She has 50% of tree A and 50% of tree B. Tree A gives her 10 oranges a month and 60% are good. Tree B gives her 15 oranges and 1/3 are good. If she gets 55 good oranges per month, how many total trees does she have?
When Kendra bought 2 toys, she paid 2 * $20 = $40. Since the price of a hat is $10, when Kendra bought 3 hats, she paid 3 * $10 = $30. The total costs for the hats and wooden toys Kendra bought is $40 + $30 = $70. From the $100 bill, Kendra received change worth $100 - $70 = $30.
The answer: 30
Reverse engineering the question:
The price of buying a wooden toy at the new Craftee And Best store is $20, and the cost of buying a hat is $10. If Kendra went to the shop with a $100 bill and bought two wooden toys and three hats, calculate the change she received.