First, we need to determine how many slices of bread Jimmy will use to make the sandwiches. We determine this by performing 8 * 2 = 16 slices of bread needed. We then divide the number of slices needed by the number of slices per bread pack, performing 16 / 4 = 4 packs of bread needed.
The answer: 4
Reverse engineering the question: Jimmy decides to make sandwiches for a picnic. He makes 8 sandwiches in total, using two slices of bread each. How many packs of bread does he need to buy to make these sandwiches, assuming he starts with no bread and each pack has 4 slices of bread in it?


Reasoning and answer: The second neighborhood uses 150 * 2 = 300 barrels of water. The third neighborhood uses 300 + 100 = 400 barrels of water. The first, second, and third neighborhoods together use 150 + 300 + 400 = 850 barrels of water. Thus, the fourth neighborhood has 1200 - 850 = 350 barrels of water left for it to use.
The answer: 350
What was the question?
Question: A water tower that serves four neighborhoods around it holds 1200 barrels of water and is filled to the top each week. If one neighborhood uses 150 barrels of water in a week, the second neighborhood uses twice as many barrels of water as the first neighborhood in a week, and the third neighborhood uses one hundred more barrels of water than the second neighborhood in a week, how many barrels are left for the fourth neighborhood?


If he uses 6 cups of flour, the baker will be making 6 / 2 = 3 times the normal amount that the recipe describes. Thus, he must use 3 * 3 = 9 eggs.
The answer: 9
Reverse engineering the question: A baker is making bread according to a recipe that requires him to use 3 eggs for every 2 cups of flour. If the baker wants to use up the 6 cups of flour he has remaining in his pantry, how many eggs will he need to use?


Reasoning and answer: Trish walks 1 mile on the first day, and since she walks double the previous day's amount each day that means she walks 1 * 2 = 2 miles the second day. On the following day, she walks double the distance of the previous day's total of 2 miles, meaning she walks 2 * 2 = 4 miles that day. On the following day, she walks double the distance of the previous day's total of 4 miles, meaning she walks 4 * 2 = 8 miles that day. On the following day, she walks double the distance of the previous day's total of 8 miles, meaning she walks 8 * 2 = 16 miles that day. As we're looking for the first day that her distance exceeds 10 times her original total, that means we're seeking a mile total of greater than or equal to 10 * 1 = 10 miles,. Since she accomplished this on the 5th day of walking, the answer is 5.
The answer: 5
What was the question?
Question: Trish likes to go for walks every day. One day, she goes on a 1-mile walk. Every subsequent day, she doubles the distance she walked the previous day. On what day does she walk more than 10 times further than she did on the first day?


Twenty shirts amount to $10 x 20 = $200. The cost of each pair of jeans is $10 x 2 = $20. So 10 pairs of jeans amount to $20 x 10 = $200. Therefore, the store will earn $200 + $200 = $400 if all shirts and jeans are sold.
The answer: 400
Reverse engineering the question: A clothing store sells 20 shirts and 10 pairs of jeans. A shirt costs $10 each and a pair of jeans costs twice as much. How much will the clothing store earn if all shirts and jeans are sold?


The block has 16 servings and he has eaten 5 servings leaving 16 - 5 = 11 servings of cheese. There are 11 servings of cheese left and each serving is 110 calories for a total of 11 * 110 = 1,210 calories.
The answer: 1210
Reverse engineering the question:
There are 110 calories in a serving of cheese. Rick buys the large blocks that have 16 servings per block. If Rick has already eaten 5 servings of cheese, how many calories are remaining in the block?