The number of eyes from the spiders is 3 * 8 = 24 eyes. The number of eyes from the ants is 50 * 2 = 100 eyes. The total number of eyes among Nina’s insects is 24 + 100 = 124 eyes.
The answer: 124
Reverse engineering the question: Nina enjoys keeping insects as pets. She has 3 spiders and 50 ants. Each spider has 8 eyes. Each ant has 2 eyes. How many eyes are there in total among Nina’s pet insects?


Reasoning and answer: Shelly made 6 / 2 = 3 friends from after - school clubs. She made 6 + 3 = 9 new friends at school this year. Shelly will need 9 * 12 = 108 inches of thread to make each friend a keychain.
The answer: 108
What was the question?
Question: Shelly makes braided keychains for her friends at school. Each keychain takes 12 inches of thread to braid. This year, she made six friends in classes and half that number from after-school clubs. She wants to make each of them a keychain. How many inches of thread does Shelly need?


The cost of the popcorn is $5 x 80 / 100 = $4. The cost of a can of soda is $4 x 50 / 100 = $2. The cost of 4 tickets is $5 x 4 = $20. The cost of 2 sets of popcorn is $4 x 2 = $8. The cost of 4 cans of soda is $2 x 4 = $8. Therefore, the family paid a total of $20 + $8 + $8 = $36.
The answer: 36
Reverse engineering the question: A movie ticket costs $5. The cost of the popcorn is 80% of the cost of the ticket and a can of soda costs 50% of the cost of the popcorn. A family bought 4 tickets, 2 sets of popcorn, and 4 cans of soda. How much did they spend?


Reasoning and answer: Jean kept 60 / 3 = 20 stuffies. That means she gave away 60 - 20 = 40 stuffies. So Janet got 40 / 4 = 10 stuffies.
The answer: 10
What was the question?
Question: Jean has 60 stuffies. She keeps 1/3 of them and then gives away the rest. She gives 1/4 of what she gave away to her sister Janet. How many stuffies did Janet get?


Lunch is 500 * .25 = 125 more calories than breakfast. That means it is 500 + 125 = 625 calories. So dinner is 625 * 2 = 1250 calories. The shakes are 3 * 300 = 900 calories. So in total he eats 500 + 625 + 1250 + 900 = 3275 calories.
The answer: 3275
Reverse engineering the question: John eats 3 meals a day. Breakfast is 500 calories. His lunch contains 25% more calories than that. His dinner is twice as many calories as lunch. He also has 3 shakes that are each 300 calories. How many calories does he get in a day?


Camilla needs 12 / 3 = 4 batches of pizza dough. 4 batches of pizza would require 30 x 4 = 120 minutes. Camilla needs to bake the pizzas 12 / 2 = 6 times. 6 times in the oven would take 30 x 6 = 180 minutes. Altogether, it would take 120 + 180 = 300 minutes to finish making 12 pizzas. 300 minutes is 300 / 60 = 5 hours.
The answer: 5
Reverse engineering the question:
It takes 30 minutes to make pizza dough and another 30 minutes in the oven for the pizza to cook. If one batch of pizza dough can make 3 pizzas but the oven can only fit 2 pizzas at a time, how many hours would it take for Camilla to finish making 12 pizzas?