Q: Matt has 8 baseball cards worth $6 each. If he trades two of them to Jane in exchange for 3 $2 cards and 1 $9 card, how much profit does he make?
A: First find the value of the 2 cards Matt trades: $6 / card * 2 cards = $12. Then find the total value of the 3 $2 cards: 3 cards * $2 / card = $6. Then subtract the value of the cards Marcus gave up from the value of the cards he gained to find his profit: $9 + $6 - $12 = $3. The answer is 3.
Question: Tas and his friends put up a t-shirt for sale. They ended up selling 200 t-shirts in 25 minutes. Half of the shirts were black and cost $30, while the other half were white and cost $25. How much money did they make per minute during the sale?
Answer: The total revenue from black shirts was 100 * $30 = $3000. The total revenue from white shirts was 100 * $25 = $2500. The total revenue from all shirts sold was $3000 + $2500 = $5500. Tas and his friends ended up making $5500 / 25 minutes = $220 per minute. The answer is 220.
[Question]Josiah puts a quarter in his piggy bank every day for 24 days. Leah saves 50 cents in an empty pickle jar every day for 20 days. Megan saves twice as much as Leah for 12 days.  How much do the three children save together?
[Answer]Josiah saves 0.25 x 24 = $6. Leah saves 0.50 x 20 = $10. Megan saves $1 x 12 = $12. Together, the children save $6 + $10 + $12 = $28. The answer is 28.
Q: Thomas is keeping track of the rainfall in May for his science project. On the first day, 26 cm of rain fell. On the second day, 34 cm fell. On the third day, 12 cm less than the second day fell. The average rainfall for the first three days of May is usually 140 cm across all three days, in a normal year. How much less is it raining this year than average?
A: In total 26 + 34 + 22 = 82 cm fell for three days. If 140 cm is the average for the first three days, then 140 - 82 = 58 cm less than the average. The answer is 58.
Question: Five years ago, the sum of Sebastian's age and his sister's age was 3/4 of their father's age. How old is their father today if Sebastian is 40 years old and 10 years older than his sister?
Answer: If Sebastian is 40 years old and 10 years older than his sister, his sister is 40 - 10 = 30 years old. Five years ago, Sebastian was 40 - 5 = 35 years old. Similarly, Sebastian's sister's age was 30 - 5 = 25 years old. The sum of their ages five years ago was 25 + 35 = 60. Five years ago, the sum of Sebastian's age and his sister's age was 3 / 4 of their father's age, meaning their father's age was 60 / 3 / 4 = 80 years. The father's age is now 80 + 5 = 85. The answer is 85.
Q: John raises butterflies. He has 4 jars of 10 caterpillars each. 40% of them fail to become butterflies, but the rest become caterpillars.  He sells the butterflies for $3 each. How much money does he make?
A:
He has 4 * 10 = 40 caterpillars. 40 * .4 = 16 fail to form. That means he has 40 - 16 = 24 butterflies. So he makes 24 * 3 = $72. The answer is 72.