Reasoning and answer: Carmela's four cousins have a total of $2 x 4 = $8. The total money they all have is $7 + $8 = $15. There will be 1 (Carmela) + 4 (cousins) = 5 people who will be sharing equally the money. So each of them should get $15 / 5 = $3. Hence, Carmela has to give a total of $7 - $3 = $4 to her 4 cousins. Therefore, each of her cousins will get $4 / 4 = $1.
The answer: 1
What was the question?
Question: Carmela has $7 and each of her four cousins has $2. How much will Carmela have to give to each of her cousins so that she and her cousins will have the same amount of money?


The total yards of the checkered fabric is $75 / 7.50 = 10. The total yards of the plain fabric is 45 / 7.50 = 6. So, Vivi bought a total of 10 + 6 = 16 yards of fabric.
The answer: 16
Reverse engineering the question: Vivi bought fabric to make new pillows for her bed. She spent $75 on checkered fabric and $45 on plain fabric. If both fabrics cost $7.50 per yard, how many total yards of fabric did she buy?


Reasoning and answer: Emily spends 3 episodes * 25 minutes = 75 minutes watching TV. Emily spends 4.5 hours * 60 minutes = 270 minutes sleeping. Emily spends 2 movies * 1.75 hours * 60 minutes = 210 minutes watching movies. The total time spent doing activities is 75 + 270 + 210 = 555 minutes. The total length of the flight is 10 hours * 60 minutes = 600 minutes. The number of minutes remaining in the flight is 600 - 555 = 45 minutes.
The answer: 45
What was the question?
Question: Emily is on a flight from New York to Hawaii that is 10 hours long. To kill time, she watches 3 TV episodes that are each 25 minutes long. Then she sleeps for 4 and a half hours. Then she watches 2 movies that are each an hour and 45 minutes long. After doing all these things, assuming there is no break time between activities, how many more minutes are left in the flight before Emily reaches Hawaii.


Half off the full price of $60 is $60 / 2 = $30 off. Thus, for the two rackets, Paul spends $60 + $60 - $30 = $90.
The answer: 90
Reverse engineering the question: Paul went to the sporting goods store to buy a tennis racket. His favorite brand was having a sale that offered customers a deal to buy one racket at full price and get the second racket for half off the full price.  If he purchased two rackets that were each originally marked at a full price of $60, how much did he spend on the two rackets, in dollars?


Reasoning and answer: The 20 big toenails take up as much space as 40 regular toenails because 20 x 2 = 40. She has filled up 80 toenails worth because 40 + 40 = 80. She can fit 20 regular toenails in the jar because 100 - 80 = 20.
The answer: 20
What was the question?
Question: Hilary is collecting her toenails in a jar to gross out her sister. She can fit 100 toenails in the jar, unless they are from her two big toes, which are twice as big as the rest. She has already filled it with 20 big toenails and 40 regular toenails. How many regular toenails can she fit into the remainder of the jar?


Reasoning and answer: Jack's mother asked him to buy 2 * 4 = 8 bottles of water. Thus Jack bought 4 + 8 = 12 bottles of water in total. Altogether, the bottles of water cost 12 * $2 = $24. The cheese cost 1 / 2 * $10 = $5. So Jack spent $24 + $5 = $29 on water and cheese. Since he started with $100, he now has $100 - $29 = $71 left.
The answer: 71
What was the question?
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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Jack went to a supermarket with $100 and bought 4 bottles of water. Then his mother called him and asked him to buy twice as many bottles as he already bought. Each bottle cost $2. Finally, he also bought half a pound of cheese and 1 pound of cheese costs $10. How much money does Jack have remaining?