Her friend will pay $5 x 7 = $35 after 7 days. Her brother will pay $8 x 7 = $56 after 7 days. Her cousin will pay $4 x 7 = $28 after 7 days. Therefore, she will be able to collect $35 + $56 + $28 = $119 after 7 days.
The answer: 119
Reverse engineering the question: Margaux owns a money lending company. Her friend pays her $5 per day, her brother $8 per day, and her cousin $4 per day. How much money will she collect after 7 days?


Reasoning and answer: Toby gets 400 full rotations because 5 x 80 = 400. His friend get 404 rotations because 4 x 101 = 404. The winner rotated 404 objects because 404 > 400.
The answer: 404
What was the question?
Question: Toby is in a juggling contest with a friend. The winner is whoever gets the most objects rotated around in 4 minutes. Toby has 5 baseballs and each one makes 80 rotations. His friend has 4 apples and each one makes 101 rotations. How many total rotations of objects are made by the winner?


Jerome has $43 x 2 = $86. After giving Meg $8, he had only $86 - $8 = $78 left. Then he gave Bianca $8 x 3 = $24. So, Jerome has only $78 - $24 = $54 left.
The answer: 54
Reverse engineering the question: Half of Jerome's money was $43. He gave $8 to Meg and thrice as much to Bianca. How much does Jerome have left?


Reasoning and answer: Lyssa got 75 x 20 / 100 = 15 mistakes. Lyssa's score is 75 - 15 = 60. The score of Precious is 75 - 12 = 63. Thus, Lyssa got 63 - 60 = 3 more correct answers than Precious.
The answer: 3
What was the question?
Question: Lyssa and Precious took an English proficiency exam. Lyssa answered 20% of the items incorrectly. Precious got 12 mistakes. How many more correct answers did Lyssa get than precious if there were 75 items in the exam?


Melissa made 30 x 4 = 120 muffins. Together, Melissa and Sasha made 30 + 120 = 150 muffins. Tiffany made 150 / 2 = 75 muffins. Altogether, they made 150 + 75 = 225 muffins. They contributed 225 x $4 = $900 to the fundraiser.
The answer: 900
Reverse engineering the question: Sasha made 30 chocolate muffins for her school bake sale fundraiser. Melissa made 4 times as many muffins as Sasha, and Tiffany made half of Sasha and Melissa's total number of muffins. If one muffin sold for $4, how much money did Sasha, Melissa, and Tiffany contribute to the fundraiser?


Caleb was left with 40 - 3 - 3 - 5 - 2 = 27 dandelion puffs to give to his friends. They each received 27 / 3 = 9 dandelion puffs.
The answer: 9
Reverse engineering the question:
Caleb picked a handful of dandelion puffs. He gave 3 to his mom, another 3 to his sister, 5 to his grandmother, and 2 to his dog. Then, he divided the remaining dandelion puffs equally among his 3 friends. How many dandelion puffs did each friend receive if he originally picked 40 dandelion puffs?