If the number of candies was 300, and 40% percent were sour, then there were 40 / 100 * 300 = 120 sour candies. The number of good candies was 300 - 120 = 180. The number of people who received candy is Henley, 1 + 2 brothers = 3 people. if they divided the good candies equally, each person got 180 / 3 = 60 candies.
The answer: 60
Reverse engineering the question: Henley bought 300 candies and shared them with her two brothers. However, they realized 40% of them were sour, and they had to separate those out. If they then shared the good candies equally, how many candies did each get?


Reasoning and answer: After first hour, 50 * 2 = 100 ants. After the second hour, 100 * 2 = 200 ants. After the third hour, 200 * 2 = 400 ants. After the fourth hour, 400 * 2 = 800 ants. After the fifth hour, 800 * 2 = 1600 ants.
The answer: 1600
What was the question?
Question: In a jar that has 50 ants, the number of ants in the jar doubles each hour. How many ants will be in the jar after 5 hours?


He has 2 + 1 = 3 umbrellas. That means he paid 3 * 8 = $24.
The answer: 24
Reverse engineering the question: John has 2 umbrellas in his house and 1 in the car. If they cost $8 each, how much did he pay in total?


Reasoning and answer: Half of the book means 500 / 2 = 250 pages. Reading the first half took Jane 250 / 10 = 25 days. Reading the second half of the book took Jane 250 / 5 = 50 days. So in total Jane needed 25 + 50 = 75 days to read the whole book.
The answer: 75
What was the question?
Question: Jane had a 500 page book to read. The first half of the book Jane read with a speed of 10 pages per day, and the second half with a speed of 5 pages a day. How many days did Jane spend reading this book?


Since 1 hour is equal to 60 minutes, then 45 minutes is equal to 45 / 60 = 0.75 hours. Then, the speed in kilometers per hour is 1.5 km / 0.75 hour = 2 kilometers per hour.
The answer: 2
Reverse engineering the question: A boy runs 1.5 km in 45 minutes. What is his speed in kilometers per hour?


Since November has 30 days, the town received 4 inches of rain for the first half of the month for 30 / 2 = 15 days. The total inches of rain that the town received for the 15 days is 15 * 4 = 60 inches. The rain falling in the town increased by 2 * 4 = 8 inches per day for the remaining half of the month. Therefore, for the rest of the month, the town received 8 * 15 = 120 inches of rain. The total amount of rain the town received in November is 120 + 60 = 180 inches.
The answer: 180
Reverse engineering the question:
In a northwestern town, it rained 4 inches per day during the first 15 days of November. For the remainder of the month, the average daily rainfall was twice the amount observed during the first 15 days. What is the total amount of rainfall for this town in November, in inches?