The temperature dropped 1.8 degrees because 80 - 78.2 = 1.8. She planted 18 trees because 1.8 / .1 = 18. It cost $108 to plant the trees because 18 x 6 = 108.
The answer: 108
Reverse engineering the question: Sasha heard that planting trees helps to reduce the local temperature. For each tree planted, the temperature drops .1 degree. A tree costs $6 to plant. If she got the local temperature to drop from 80 to 78.2, how much did it cost to plant the trees?


Reasoning and answer: Two aeroplanes require 240 legos / airplane x 2 airplanes = 480 legos. Julian needs 480 legos - 400 legos = 80 more legos.
The answer: 80
What was the question?
Question: Julian has 400 legos and wants to make lego models of two identical airplanes. If each airplane model requires 240 legos, how many more legos does Julian need?


Pants = 8.5 * 7 = 59.5 feet. 3.5 yards = 10.5 feet. 59.5 - 10.5 = 49. Nguyen still needs 49 feet of fabric.
The answer: 49
Reverse engineering the question: One pair of pants requires 8.5 feet of fabric. Nguyen needs to make 7 pairs of pants for the wedding. He has 3.5 yards of fabric. How many feet of fabric does Nguyen still need for the pants?


Reasoning and answer: The second tree grows 1 * 2 = 2 meters a day. The fourth tree grows 2 + 1 = 3 meters a day. The first tree grows 4 * 1 = 4 meters in 4 days. The second tree grows 2 * 4 = 8 meters in 4 days. The third tree grows 2 * 4 = 8 meters in 4 days. The fourth tree grows 3 * 4 = 12 meters in 4 days. In 4 days, all four trees grew 4 + 8 + 8 + 12 = 32 meters combined.
The answer: 32
What was the question?
Question: There are four growing trees. The first tree grows 1 meter/day, the second grows the same amount in half the time, the third grows 2 meters/day, and the fourth tree grows a meter more than the third each day. How many meters did the trees grow in total in 4 days?


You save $5 per chair with the 25% off sale. On sale chairs cost $15 each because 20 - 5 = 15. You bought 3 chairs above the 5 required before the extra savings starts because 8 - 5 = 3. You save an extra $5 on these chairs because 15 x (1 / 3) = 5. The first five chairs cost $75 in total because 5 x 15 = 75. The final three chairs cost $30 in total because 3 x 10 = 30. In total they cost $105 because 75 + 30 = 105.
The answer: 105
Reverse engineering the question: Big Lots is having a sale. All chairs are 25% off. If you buy more than 5 chairs, you get an additional 1/3 off the discounted price of the number of chairs over 5. If you bought 8 chairs that were normally priced at $20, how much do the chairs cost in total?


Wendi doubled her number of chickens from 4 to 4 * 2 = 8 chickens. After a dog ate one of the chickens, 8 - 1 = 7 chickens remained. 4 less than 10 is 10 - 4 = 6. Therefore, Wendi added another 4 less than ten chickens for a total of 7 + 6 = 13 chickens.
The answer: 13
Reverse engineering the question:
Wendi brought home 4 chickens. After a few days, she brought home enough additional chickens to double the number of chickens she owned. Then, a neighbor's dog ate one of her chickens. Finally, Wendi found an additional 4 less than ten chickens and brought them home too. After this, how many chickens does Wendi have?