Reasoning and answer: 1 / 6 * 240 students = 40 students. So 40 students read three or more novels. 35 / 100 * 240 students = 84 students. So 84 students read two novels. 5 / 12 * 240 students = 100 students. So 100 students read a novel. 240 students – (40 students + 84 students + 100 students) = 240 students – 224 students = 16 students. So 16 students don't read novels.
The answer: 16
What was the question?
Question: 240 sixth-grade students were asked about the number of novels they read per month. 1/6 of students read three or more novels, 35% of students read two novels, 5/12 of students read one novel, and the rest of the students do not read anything. Calculate the number of students who do not read novels.


Sean has 40 / 2 + 4 = 24 dollars. Rick has 24 * 3 = 72 dollars. Sean and Rick have 24 + 72 = 96 dollars together.
The answer: 96
Reverse engineering the question: Sean has 4 dollars more than half as much money as Fritz. Rick has 3 times as much money as Sean. If Fritz has 40 dollars, how much money do Rick and Sean have?


Reasoning and answer: Ten shirts cost 10 x $5 = $50. And, three pairs of sandals cost 3 x $3 = $9. Thus, she spent $50 + $9 = $59. Therefore, she got back change of $100 - $59 = $41.
The answer: 41
What was the question?
Question: Yanna bought ten shirts at $5 each and three pairs of sandals at $3 each. How much change did she get back if she gave a one hundred dollar bill?


30 / 2 = 15 students answered green. 18 / 3 = 6 girls answered pink. So, 15 + 6 = 21 students answered either green or pink. Therefore, 30 - 21 = 9 answered yellow.
The answer: 9
Reverse engineering the question: Miss Molly surveyed her class of 30 students about their favorite color. Half of the class answered green, one-third of the girls answered pink, and the rest of the class answered yellow. If there are 18 girls in the class, how many students like yellow best?


Reasoning and answer: The cost of the ice cream is 10 × $4 = $40. The cost of the frozen yoghurt is 4 × $1 = $4. Caleb spent $40 − $4 = $36 more on ice cream than on frozen yogurt.
The answer: 36
What was the question?
Question: Caleb bought 10 cartons of ice cream and 4 cartons of frozen yoghurt. Each carton of ice cream cost $4 and each carton of frozen yoghurt cost $1. How much more did Caleb spend on ice cream than on frozen yoghurt?


Reasoning and answer: If Roselyn gave Rebecca 40 books, and Mara was given three times as many books, Mara has 3 * 40 = 120 books. Rebecca and Mara's total number of books is 120 + 40 = 160 books. If Roselyn gave Mara and Rebecca her books, which is 160, then she initially had 60 + 160 = 220 books.
The answer: 220
What was the question?
Question:
Roselyn gives Mara three times as many books as she gives Rebecca and remains with 60 books. If Rebecca received 40 books, how many books did Roselyn have before?