Dexter have 9 x 15 = 135 basketball cards. He filled 9 - 3 = 6 plastic boxes with football cards. So, he has 6 x 20 = 120 football cards. Therefore, Dexter has 135 + 120 = 255 cards in total.
The answer: 255
Reverse engineering the question: Dexter filled 3 fewer plastic boxes with football cards than basketball cards. He filled 9 boxes with basketball cards and each box has 15 cards. For the boxes with football cards, he filled each box with 20 cards. How many cards does Dexter have in total?


Reasoning and answer: If Tony can curl 90 pounds, he can military press 2 * 90 = 180 pounds. Therefore, Tony can squat 5 * 180 = 900 pounds.
The answer: 900
What was the question?
Question: Tony lifts weights as a form of exercise. He can lift 90 pounds with one arm in the exercise known as "the curl." In an exercise known as "the military press," he can lift over his head twice the weight that he can curl. His favorite exercise is known as "the squat" and he can squat 5 times the weight that he can lift in the military press. How much weight, in pounds, can Tony lift in the squat exercise?


Ivan wants to bake 24 pies which use 1 / 2 an apple each, 24 pies x 1 / 2 apple each = 12 apples. Ivan uses 12 of his 48 apples, 48 - 12 = 36 apples. Ivan has 36 apples leftover.
The answer: 36
Reverse engineering the question: Ivan buys 48 apples to make 24 full-size pies. He ends up not using as many as he thought because he decides to make mini pies instead of full-size ones, which only use 1/2 an apple each. If Ivan bakes 24 mini pies, how many apples does he have leftover?


Reasoning and answer: The first step to find the total number of gingerbread men is to add the number with each decoration: 6 men + 9 men = 15 men. Then subtract the number of gingerbread men with both decorations to find the total number of gingerbread men: 15 men - 3 men = 12 men. Then divide the number of gingerbread men with red hats by the total number and multiply by 100% to express the answer as a percentage: 6 men / 12 men * 100% = 50%.
The answer: 50
What was the question?
Question: Anna is making gingerbread cookies. She gives 6 of them red hats, 9 of them blue boots, and 3 of them both red hats and blue boots. What percentage of the gingerbread men have red hats?


The trucks cost 60 bottle caps because 10 x 6 = 60. He has 40 bottle caps left because 100 - 60 = 40. He spends 30 bottle caps on cars because 40 x .75 = 30. He gets 6 cars with this because 30 / 5 = 6. He gets 16 vehicles in total because 10 + 6 = 16.
The answer: 16
Reverse engineering the question: Jude is trading his bottle cap collection to Arthur for some of Arthur's matchbox vehicles. Arthur charges Jude 5 bottle caps for a car and 6 bottle caps for a truck. Jude has 100 bottle caps. If he buys 10 trucks and spends 75% of his remaining bottle caps on cars, how many total matchbox vehicles does he buy?


Since the ratio of apples to oranges is 3:1, that means for every 3 apples there is 1 orange. The size of this group is therefore 3 + 1 = 4. We then divide this group size into the total amount of fruit the basket is holding at this time, which is 40. This means there are 40 / 4 = 10 of these groups in total. Since there are 10 of these groups in total, that means there are 10 * 1 = 10 oranges in the basket.
The answer: 10
Reverse engineering the question:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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If a basket is capable of holding 40 fruit altogether, and there are 3 times as many apples as oranges, how many oranges are there?