Reasoning and answer: Bobby ate 5 pancakes and his dog ate 7 so 5 + 7 = 12. The recipe makes 21 pancakes and 12 were eaten so 21 - 12 = 9 pancakes were left.
The answer: 9
What was the question?
Question: Bobby wanted pancakes for breakfast. The recipe on the box makes 21 pancakes. While he ate 5 pancakes, his dog jumped up and was able to eat 7 before being caught. How many pancakes does Bobby have left?


She drinks 1 / 5 of a bottle of sparkling water every night so over an entire year she drinks .2 * 365 = 73 bottles of sparkling water. Every bottle costs $2.00 and she drinks 73 bottles a year so she spends 2 * 73 = $146.00 a year on sparkling water.
The answer: 146
Reverse engineering the question: Mary Anne drinks 1/5 of a bottle of sparkling water every night at dinner. If each bottle costs her $2.00, how much does she spend on sparkling water every year?


Reasoning and answer: Without the discount, each pair cost $10 so 3 pairs cost 3 * $10 = $30. With a discount of 10% on the total cost, she can pay only $30 - ($30 * (10 / 100)) = $27. By buying 3 at once in order to get the discount, she can save $30 - $27 = $3.
The answer: 3
What was the question?
Question: Stacy went to a store to buy some pairs of shorts. Each pair normally cost $10, but there's a discount of 10% on the total cost for people who purchase 3 or more pairs at once. How much can she save by buying 3 pairs at once as opposed to purchasing them individually at different times?


Let X be the amount Anna had originally. She spent X * 1 / 4 and has X - X * 1 / 4 = $24 left. Combining like terms, we get X * 3 / 4 = $24. Dividing both sides by 3 / 4, we get X = $32.
The answer: 32
Reverse engineering the question: Anna spent 1/4 of her money, and now she has $24 left. How much did she have originally?


Reasoning and answer: If we let X represent the number of pounds of coal that the blue boxcar can hold, then 4000 = (1 / 2)X. Solving for X, we get X = 8000 pounds of coal, which represents what the blue car can hold. Thus, the red boxcar can hold 3 * 8000 = 24,000 pounds of coal. 3 red boxcars can carry 3 * 24,000 = 72,000 pounds of coal. 7 black boxcars can carry 7 * 4,000 = 28,000 pounds of coal. 4 blue boxcars carry 4 * 8,000 = 32,000 pounds of coal. Together, all the trains boxcars can carry 72,000 + 28,000 + 32,000 = 132,000 pounds of coal.
The answer: 132000
What was the question?
Question: Ronnie is a train engineer. His train pulls 3 red boxcars, 4 blue boxcars, and 7 black boxcars. If the black boxcars can each hold 4000 pounds of coal, which is half as much as what the blue boxcars can hold, and the red boxcars can hold 3 times as much as the blue boxcars, how many pounds of coal can all of the train's boxcars combined hold?


Reasoning and answer: First find the total cook time for the steaks: 3 steaks * 6 minutes / steak = 18 minutes. Then add the waffles' cook time to find the total cook time: 18 minutes + 10 minutes = 28 minutes.
The answer: 28
What was the question?
Question:
Carla can cook a batch of waffles in 10 minutes and chicken-fried steak in 6 minutes. How long will it take her to cook 3 steaks and a batch of waffles?