If Marcus creates 2 paintings on the first day, then he can paint 2 paintings * 2 = 4 paintings on the 2nd day. So he paints 4 paintings * 2 = 8 paintings on the 3rd day. He then paints 8 paintings * 2 = 16 paintings on the 4th day. And finally paints 16 paintings * 2 = 32 paintings on the 5th day. Marcus therefore has painted a total of 2 + 4 + 8 + 16 + 32 = 62 paintings.
The answer: 62
Reverse engineering the question: Marcus has received a commission for as many paintings as possible. Marcus plans out his drawings so that his client can receive some of the paintings as soon as possible but it is still going to take a long time. On the first day, he paints 2 paintings. He then paints every day and each day, he paints twice as many paintings as he painted the day before. If he paints for 5 days, how many paintings will he have painted in total?


Reasoning and answer: Yvette spent 7.50 + 10 + 8.5 + 9 = $35.00 on ice cream sundaes. Her bill comes to $35.00 and she leaves a 20% tip for the waiter so that's 35 * .20 = $7.00. The bill was $35.00 and she added a $7.00 tip for a total of 35 + 7 = $42.00.
The answer: 42
What was the question?
Question: It's Yvette's turn to treat herself and her three best friends to a round of ice cream sundaes. Alicia orders the peanut butter sundae for $7.50. Brant orders the Royal banana split sundae for $10.00. Josh orders the death by chocolate sundae for $8.50 and Yvette orders the cherry jubilee sundae for $9.00. She leaves her waiter a 20% tip. How much will her final bill be?


First figure out how long both color coats will take to dry: 3 minutes * 2 = 6 minutes. Then add up the time for the base coat, top coat, and color coats: 6 minutes + 2 minutes + 5 minutes = 13 minutes.
The answer: 13
Reverse engineering the question: Jane is painting her fingernails. She applies a base coat that takes 2 minutes to dry, two color coats that take 3 minutes each to dry, and a clear top coat that takes 5 minutes to dry. How many minutes total does Jane spend waiting for her nail polish to dry?


Reasoning and answer: There were 20 + 5 = 25 basketballs. There were 2 x 20 = 40 tennis balls. And, there were 20 + 10 = 30 baseballs. So, there were 20 + 25 + 40 + 30 = 115 soccer balls, basketballs, tennis balls and baseball altogether.                      Therefore, Reynald bought 145 - 115 = 30 volleyballs,.
The answer: 30
What was the question?
Question: Reynald is the head of the varsity department, and he bought 145 balls. Twenty were soccer balls. There were five more basketballs than the soccer balls. Twice the number of soccer balls were tennis balls. There were ten more baseballs than the soccer balls, and the rest were volleyballs. How many were volleyballs?


Monica's mother ate half as many cookies as Monica's father, so she ate 10 cookies / 2 = 5 cookies. Monica's brother ate 5 cookies + 2 cookies = 7 cookies. There were 30 cookies - 7 cookies - 5 cookies - 10 cookies = 8 cookies left for Monica.
The answer: 8
Reverse engineering the question: Monica made cookies for herself and her family. Her father ate 10 cookies and her mother ate half as much as the father. Her brother ate 2 more than her mother. How many cookies are left for Monica if she made 30 cookies in total?


Each hour Jimmy makes 60min ÷ 10min / pizza = 6 Pizzas. The number of total pizzas made equals 7 hours x 6 pizzas / hour = 42 pizzas. The amount of total flour used equals 42 pizzas x 0.5 kg / pizza = 21 kg. The amount of flour left equals 22 kg - 21 kg = 1 kg. The number of pizzas Jimmy can make is 1kg ÷ 0.5kg / pizza = 2 pizzas.
The answer: 2
Reverse engineering the question:
Jimmy is going to sell pizzas at the carnival to make some money. The carnival only gave him 7 hours to do so. He bought a 22kg sack of flour to make his pizzas and he takes 10 min to make each pizza for the customers. At the end of the 7 hours, he saw some flour was left. Knowing that each pizza needs 0.5kg of flour to make, how many pizzas can he make to bring home with the flour left?