Reasoning and answer: If Rin's snorkel helmet has 75 craters, then Dan's and Daniel's helmets combined have 75 - 15 = 60 craters. Let's assume Dan's helmet has C craters. Since Dan's skateboarding helmet has ten more craters than Daniel's ski helmet, the total number of craters their helmets have is C + (C - 10) = 60. 2C = 60 + 10. The total number of craters that Dan's helmet has is C = 70 / 2. Dan's skateboarding helmet has 35 craters.
The answer: 35
What was the question?
Question: Dan's skateboarding helmet has ten more craters than Daniel's ski helmet. Rin's snorkel helmet has 15 more craters than Dan's and Daniel's helmets combined. If Rin's helmet has 75 craters, how many craters are in Dan's helmet?


Since there are four types of chocolate bars and each type has 25 bars, the total number of chocolate bars is 25 * 4 = 100. Since there is a total of 100 chocolate bars and four types of chocolate, we divide 100 / 4 = 25%.
The answer: 25
Reverse engineering the question: Makenna is selling candy for her Softball Team. The box contains 25 milk chocolate bars, 25 dark chocolate bars, 25 milk chocolate with almond bars, and 25 white chocolate bars. What is the percentage of each type of chocolate bar?


Reasoning and answer: A tray of eggs has 30 eggs, so Kelsey brought 2 / 5 * 30 = 12 eggs. On the other hand, Stephanie brought 1 / 2 * 30 = 15 eggs to the party. The total number of eggs that Kelsey and Stephanie brought to Willa's party is 15 + 12 = 27. Alayah brought 27 + 40 = 67 eggs, 40 more than the number brought by Kelsey and Stephanie combined. Together with Aliyah's eggs, there were a total of 67 + 27 = 94. Willa also had 2 * 30 = 60 eggs from the two trays she had. In total, there were 94 + 60 = 154 eggs used at the party.
The answer: 154
What was the question?
Question: Kelsey had 2/5 of a tray of eggs that she had brought to Willa's party. Stephanie had also brought half a tray of eggs to the party, while Alayah brought 40 more eggs than Kelsey and Stephanie combined. If Willa had two trays of eggs already, calculate the total number of eggs that were used at the party.


The cost of 9 plates is $2 x 9 = $18. So, Chenny paid $24 - $18 = $6 for the spoons. Therefore, she bought $6 / $1.50 = 4 spoons.
The answer: 4
Reverse engineering the question: Chenny bought 9 plates at $2 each. She also bought spoons at $1.50 each. How many spoons did Chenny buy if she paid a total of $24 for the plates and spoon?


Reasoning and answer: The cost was 15 * 3 = $45. So the tip was 45 * .2 = $9. So in total, he paid 45 + 9 = $54.
The answer: 54
What was the question?
Question: Mark hires a singer for 3 hours at $15 an hour. He then tips the singer 20%. How much did he pay?


Reasoning and answer: 25% of the apples are sour because 100 - 75 = 25. The average price of an apple sold is $.4 because .75(.5) + .25(.1) = .4. He got 100 apples because 40 / .4 = 100.
The answer: 100
What was the question?
Question:
Chang's Garden has two kinds of apples. Sweet ones and sour ones. He can sell the sweet ones for $.5 an apple. The sour ones sell for $.1 an apple. 75% of the apples he gets are sweet and the rest are sour. If he earns $40, how many apples did his trees give him?