After giving a box to his mom, Seth had 4 * 2 = 8 boxes left. Seth bought 8 + 1 = 9 boxes of oranges.
The answer: 9
Reverse engineering the question: Seth bought some boxes of oranges. He gave a box to his mother. He then gave away half of the remaining boxes. If Seth has 4 boxes of oranges left, how many boxes did he buy in the first place?
Reasoning and answer: The soda cans were consumed by 90 / 2 = 45 guests. The sparkling water was consumed by 90 / 3 = 30 guests. The juice bottles were consumed by 4 / 5 x 50 = 40 guests. In total there are 45 + 30 + 40 = 115 recyclable cans and bottles.
The answer: 115
What was the question?
Question: There were 90 people at the summer picnic. There were 50 soda cans, 50 plastic bottles of sparkling water, and 50 glass bottles of juice. One-half of the guests drank soda, one-third of the guests drank sparkling water, and four-fifths of the juices were consumed. How many recyclable cans and bottles were collected?
Samson ate 3 sandwiches x 2 = 6 sandwiches at dinner on Monday. He ate 3 sandwiches + 6 sandwiches = 9 sandwiches total on Monday. Therefore, he ate 9 sandwiches - 1 sandwich = 8 more sandwiches on Monday than Tuesday.
The answer: 8
Reverse engineering the question: On Monday Samson ate 3 sandwiches at lunch and ate twice as many at dinner. The next morning, he felt sick from eating all those sandwiches, so he only ate one sandwich for breakfast. How many more sandwiches in total did Samson eat on Monday than Tuesday?
Reasoning and answer: Faith must pay $28 + $5 = $33 for the flour and cake stand. Her two $20 bills amount to $20 x 2 = $40. So, she gave the cashier a total of $40 + $3 = $43. Hence, her change is $43 - $33 = $10.
The answer: 10
What was the question?
Question: Faith went to a baking shop and bought flour that cost $5 and a cake stand that costs $28. She then gave the cashier two $20 bills and $3 in loose coins. How much change will she receive?
The back wheel has double the spokes the front wheel has, which means the back wheel has 20 * 2 = 40 spokes. In total, the bicycle has 20 + 40 = 60 spokes.
The answer: 60
Reverse engineering the question: An unusual bicycle has 20 spokes on the front wheel and twice as many spokes on the back wheel. How many spokes does the bicycle have?
To finish an audiobook 30 hours long, listening to 2 hours of each audiobook a day, Fernanda took 30 hours / 2 hours / day = 15 days to finish one audiobook. If she purchased 6 audiobooks, the total number of days she will take to finish all the audiobooks is 6 audiobooks * 15 days / audiobook = 90 days.
The answer: 90
Reverse engineering the question:
Fernanda purchased six audiobooks from Audible to listen to from her audible app. If each audiobook was 30 hours long and she listened to 2 hours of an audiobook each day, calculate the total time it took her to finish the six audiobooks?