One week is 7 days, so for one week, Mike trained for 7 * 2 = 14 hours. The second week he began to train for 3 hours a day, so he trained for 7 * 3 = 21 hours. That means Mike in total trained for 21 + 14 = 35 hours.
The answer: 35
Reverse engineering the question: Mike began to train to play basketball every day for a tournament. One day he plays a maximum of 2 hours. After a week of training, he increased the maximum time to 3 hours. How many hours did Mike train during the first two weeks?


Reasoning and answer: Martha had 4 bottles of juice in the pantry + 4 bottles in the refrigerator = 8 bottles of juice. After Martha went shopping she added 5 bottles of juice to the + 8 bottles she already had = 13 bottles of juice. Martha and her family drank 3 bottles of juice during the week from the 13 they had, 13 - 3 = 10 bottles left.
The answer: 10
What was the question?
Question: After Martha went grocery shopping she had 4 bottles of juice in the refrigerator and 4 bottles in the pantry. During the week Martha bought 5 more bottles of juice. If Martha and her family drank 3 bottles of juice during the week, how many bottles are left?


Haley held 8 marshmallows. Michael held 3 times Haley's, so he held 8 x 3 = 24 marshmallows. Brandon held half as many marshmallows as Michael, so he held 24 / 2 = 12 marshmallows. Together, they held 8 + 24 + 12 = 44 marshmallows.
The answer: 44
Reverse engineering the question: Haley, Michael and Brandon were trying a marshmallow challenge to see who could hold more marshmallows in their mouths. Haley could hold 8 marshmallows in her mouth. Michael could hold 3 times as many marshmallows as Haley. Brandon could hold half as many as Michael. How many total marshmallows did all three kids hold in their mouths?


Reasoning and answer: The total number of girls in the choir is 80 + 10 = 90 girls. The total number of blondes in the choir after 10 more are added is 30 + 10 = 40 blonde - haired girls. From the total number, the number of black - haired girls is 90 - 40 = 50 black - haired - girls.
The answer: 50
What was the question?
Question: Lizzy's school choir has a mixture of 80 blonde and black-haired girls. Their teacher decides to add 10 more girls to the choir, who turns out to be blonde. If there were 30 blonde-haired girls in the choir initially, how many black-haired girls are present?


Chad's cat food total was 6 packages * 9 cans = 54 cans of cat food. Chad's dog food total was 2 packages * 3 cans = 6 cans of dog food. Chad had 54 cans of cat food - 6 cans of dog food = 48 more cans of cat food.
The answer: 48
Reverse engineering the question: Chad bought 6 packages of cat food and 2 packages of dog food. Each package of cat food contained 9 cans, and each package of dog food contained 3 cans. How many more cans of cat food than dog food did Chad buy?


Melanie starts with 1 slice of bread that she tears in half, making 2 halves. She takes both of those halves and tears them each in half, 2 halves x 2 more halves in half = 4 pieces per slice of bread. Melanie is using 2 slices of bread x 4 pieces each = 8 pieces overall to add to the blender.
The answer: 8
Reverse engineering the question:
Melanie is making meatballs for dinner. The recipe calls for breadcrumbs. To make the breadcrumbs Melanie is going to tear 2 slices of bread into smaller pieces and then add them to a blender to grind them into fine crumbs. First she tears the bread slices each in half, then tears those halves in half. How many bread pieces is Melanie going to put into the blender?