In 1 hour, Mary will have traveled 5 miles / hour * 1 hour = 5 miles. In 1 hour, Jimmy will have traveled 4 miles / hour * 1 hour = 4 miles. Since they are running in opposite directions, the distance between them will be 5 miles + 4 miles = 9 miles.
The answer: 9
Reverse engineering the question: Mary and Jimmy start running from the same spot, but in opposite directions. Mary runs at 5 miles per hour and Jimmy runs at 4 miles per hour. What is the distance between them after 1 hour?


Reasoning and answer: 1491 + 3025 = 4516. 4516 + 1768 = 6284. There are 6284 flowers at the Greene Nursery.
The answer: 6284
What was the question?
Question: At the Greene Nursery, there are 1491 red roses, 3025 yellow carnations, and 1768 white roses. How many flowers are at the Greene Nursery in total?


First find how many hours of runoff the sewers can handle: 240,000 / 1000 gallons / hour = 240 hours. Then divide that time by the number of hours per day to find how many days of rain the sewers can handle: 240 hours / 24 hours / day = 10 days.
The answer: 10
Reverse engineering the question: The sewers in Middleton can handle 240,000 gallons of run-off. Each hour of rain produces 1000 gallons of runoff. How many days of rain can the sewers handle before they overflow?


Reasoning and answer: Marvin sold 35 candy bars at $2 each so 35 * 2 = $70 worth of candy. Tina sold three times the amount of candy so $70 * 3 = $210 worth of candy. If Tina sold $210 worth of candy and Marvin sold $70 in candy then 210 - 70 = $140 more sold than Marvin.
The answer: 140
What was the question?
Question: Marvin and Tina were selling candy bars to help fund their class trip. The candy bars cost $2 each. Marvin sold 35 candy bars total. Tina sold three times the number of candy bars as Marvin. How much more money did Tina make for the class trip selling candy bars compared to Marvin?


On Tuesday, Adam bought 3 * 15 apples = 45 apples. On Wednesday, Adam bought 4 * 45 apples = 180 apples. Adam bought 15 apples + 45 apples + 180 apples = 240 apples on the three days.
The answer: 240
Reverse engineering the question: Adam bought 15 apples on Monday. On Tuesday he bought 3 times that quantity. On Wednesday he bought 4 times the quantity he bought on Tuesday. What is the total quantity Adam bought on these three days?


Each of Pam's bags contain 40 * 3 = 120 apples. Pam has 1200 / 120 = 10 bags of apples.
The answer: 10
Reverse engineering the question:
Pam has some bags of apples. Each of her bags has as many apples as 3 of Gerald's bags. Gerald's bags have 40 apples each. If Pam has 1200 apples in total, how many bags of apples does she have?