Reasoning and answer: Charles drew 6 + 6 = 12 pictures. He has 20 - 12 = 8 papers left. So Charles drew when he came back from work 8 - 2 = 6 pictures.
The answer: 6
What was the question?
Question: Charles bought 20 papers to draw. Today Charles drew 6 pictures. Yesterday he drew 6 pictures before going to work and some pictures when he came back. How many pictures did Charles draw when he came back from work knowing that he has 2 papers left?
Simone = (1 / 2) * 16 = 8. Lauri = (1 / 3) * 15 = 5. 8 + 5 = 13. Together they ate 13 apples.
The answer: 13
Reverse engineering the question: Simone ate 1/2 of an apple each day for 16 days. Lauri ate 1/3 of an apple each day for 15 days. How many apples did the two girls eat altogether?
Reasoning and answer: The first number is 33 / 3 = 11. The second number is 11 * 2 = 22.
The answer: 22
What was the question?
Question: If the sum of two numbers is 33, and if the second number is twice the first number, what is the second number?
After putting 10 eggs in the fridge, the chef has 60 - 10 = 50 eggs left to make cakes. Since it takes 5 eggs to make one cake, the chef can make 50 eggs 5 eggs per cake = 10 cakes.
The answer: 10
Reverse engineering the question: The chef has 60 eggs. He puts 10 eggs in the fridge and uses the rest to make cakes. If he used 5 eggs to make one cake, how many cakes did the chef make?
Reasoning and answer: 12 inches is 1 foot and they received a .5 foot of snow on the first day so they received 12 * .5 = 6 inches of snow. The first day they had 6 inches and then received another 8 inches for a total of 6 + 8 = 14 inches. 2 inches melted from their 14 inches so that leaves 14 - 2 = 12 inches of snow. They received 2 times the amount as the first day's 6 inches of snow so that's 2 * 6 = 12 inches of snow. So they had 12 inches of snow and received another 12 inches of snow for a total of 12 + 12 = 24 inches. 12 inches is 1 foot and they have 24 inches of snow so they have 24 / 12 = 2 feet of snow.
The answer: 2
What was the question?
Question: Boston had .5 feet of snow on the first day of winter. The next day they got an additional 8 inches. Over the next 2 days, 2 inches of the snow melted. On the fifth day, they received another 2 times the amount of snow they received on the first day. How many feet of snow do they now have?
Reasoning and answer: Jerome has 20 classmates on the list, and has half as many out of school friends on there so he has 20 / 2 = 10 out of school friends on the contact list. He has 2 parents and 1 sister on the contact list, for 2 + 1 = 3 family members on the contact list. Adding the classmates, out of school friends and family members together we get 20 + 10 + 3 = 33 people on his contact list.
The answer: 33
What was the question?
Question:
Jerome has 20 classmates on his cell phone contact list. He has half as many out of school friends as classmates on his contact list. He also has his two parents and his sister on his contact list. How many people are on Jerome's contact list?