Reasoning and answer: She bought 2 pies that had 8 slices each for a total of 2 * 8 = 16 slices. Rebecca ate 2 of the 16 slices leaving 16 - 2 = 14 slices. Her family and friends at 50% of the pie so they ate 14 * .50 = 7 slices. There were 14 slices and her family and friends ate 7 slices so that leaves 14 - 7 = 7 slices. Sunday night Rebecca and her husband each had a slice from the remaining slices so that leaves 7 - 2 = 5 slices.
The answer: 5
What was the question?
Question: Rebecca bought 2 pies for the holiday weekend. Each pie was sliced into 8 slices. Rebecca ate 1 slice of each pie. Her family and friends ate 50% of the remaining pies over the weekend. On Sunday evening Rebecca and her husband each had another slice of pie. How many slices are remaining?


Each bank teller has 10 x 25 = 250 coins. Thus, four bank tellers have 250 x 4 = 1000 coins.
The answer: 1000
Reverse engineering the question: Each bank teller has 10 rolls of coins. Each roll has 25 coins. How many coins do four bank tellers have in all?


Reasoning and answer: For every acre of grass, the farmer can harvest 560 / 5 = 112 bales of hay each month. This year, the farmer has 7 + 5 = 12 acres of grass. He can expect to harvest 12 x 112 = 1344 bales of hay per month. The total hay production this year is 1344 * 12 = 16128. From September to December, the farmer would have to feed his horses for a total of 30 + 31 + 30 + 31 = 122 days. Each day his horse eats a total of 3 * 9 = 27 bales of hay. For the 122 days, the horses will eat a total of 27 * 122 = 3294 bales. The total number of bales remaining will be 16128 - 3294 = 12834.
The answer: 12834
What was the question?
Question: A hay farmer harvested 560 bales of hay from 5 acres of grass per month last year. This year, he planted an additional 7 acres of grass. If the farmer also owns 9 horses and each horse consumes 3 bales of hay a day, how many bales of hay would the farmer have left by the end of December if he starts feeding them this year's hay beginning the first day of September?


December has 31 days, January has 31 days and February has 28 days for a total of 31 + 31 + 28 = 90 days. He feeds them 1 / 2 cup in the morning and 1 / 2 cup in the afternoon for a total of 1 / 2 + 1 / 2 = 1 cup per day. If he feeds them 1 cup per day for 90 days then he will need 1 * 90 = 90 cups of birdseed.
The answer: 90
Reverse engineering the question: Herman likes to feed the birds in December, January and February. He feeds them 1/2 cup in the morning and 1/2 cup in the afternoon. How many cups of food will he need for all three months?


Reasoning and answer: Jimmy has 120 matches because 5 times 24 equals 120. Jimmy trades this for 10 stamps because 120 divided by 12 equals 10. Tonya has 3 stamps left because 13 minus 10 equals 3.
The answer: 3
What was the question?
Question: Jimmy and Tonya both like collecting matchbooks and stamps. Tonya and Jimmy decide to trade some stamps and matchbooks. They have each decided that one stamp is worth 12 matches. Each matchbook contains 24 matches. If Tonya arrives with 13 stamps, Jimmy has 5 matchbooks, and Jimmy trades all his matchbooks for stamps, how many stamps does Tonya have left?


Reasoning and answer: Reggie makes 3 points off layups because 3 x 1 = 3. Reggie makes 4 points off free - throws because 2 x 2 = 4. Reggie makes 3 points off long shots because 1 x 3 = 3. Reggie scores 10 points because 3 + 4 + 3 = 10. His brother scores 12 points because 4 x 3 = 12. Reggie loses by 2 because 12 - 10 = 2.
The answer: 2
What was the question?
Question:
Reggie and his brother are having a basketball shooting contest. They each get to take 10 shots. Layups are worth 1 point, free throws are worth 2 points, and anything further away is worth 3 points. Reggie makes 3 layups, two free throws, and one long shot. His brother only shoots long shots and makes 4 of them. How many points does Reggie lose by?