Gary can bake 4 / 0.5 = 8 cakes from the 4 pounds of flour. He can bake 2 / 1 / 5 = 10 cupcakes from the 2 pounds of flour. So, he will earn $2.5 x 8 = $20 from the cakes. Hence, Gary will earn a total of $20 + $10 = $30 from baking 8 cakes and 10 cupcakes.
The answer: 30
Reverse engineering the question: Gary has 6 pounds of flour. He will use 4 pounds of flour to make cakes which require 0.5 pounds of flour each. The remaining 2 pounds of flour will be used to bake cupcakes, which require 1/5 pounds of flour. He plans to sell the cakes for $2.5 each and the cupcakes for $1 each in the school's bake sale. How much will Gary earn?


Reasoning and answer: In an hour, she needs to earn $10 * 100 cents / $1 = 1000 cents. In an hour, she must pick 1000 cents / 5 cents = 200 weeds. There are 1hr * (60 minutes / 1 hr) = 60 minutes in an hour. There are 60 minutes * (60 seconds / 1 minute) = 3600 seconds in an hour. She has 3600 seconds / 200 = 18 seconds to pick each weed.
The answer: 18
What was the question?
Question: Heather helps her neighbour pick weeds out of her garden. She gets paid 5 cents for every weed she picks. On average, how many seconds can she take to pick a weed if she wants to earn $10 an hour?


If 6 friends each want 2 bars, that's 6 friends * 2 bars = 12 bars needed. Each box contains 3 bars, so 12 bars / 3 bars per box = 4 boxes needed. A box is $7, so 4 boxes * $7.50 = $30. There are 6 friends so $30 / 6 friends = $5 per person.
The answer: 5
Reverse engineering the question: A box of ice cream bars costs $7.50 and contains three bars. 6 friends want to each eat 2 bars. How much money will that require per person?


Reasoning and answer: If Taylor has 4 pets, and each of his first friends brings twice as much, the total for each friend is 4 * 2 = 8 pets. The total number of pets for Taylor's first friends is 8 * 3 = 24 pets. The other two friends brought two pets each, a total of 2 * 2 = 4 pets. The total number of pets will be Taylor's pets plus his friend's, which is 4 + 4 + 24 = 32 pets.
The answer: 32
What was the question?
Question: Taylor and his friends decide to bring their pets together for a walk. 3 of his friends come first, each having twice as many pets as Taylor has. Another two of his friends have 2 pets each. If Taylor has 4 pets, what's the total number of pets they have together?


Victory saves $1000 - $100 = $900 for holiday spending. The total money saved is $1000 + $900 = $1900.
The answer: 1900
Reverse engineering the question: Victory and Sam have saved money for their holiday spending. Victory saves $100 less than Sam. If Sam saves $1000, how much is the total money saved for holiday spending?


First find the total number of sheep by dividing the number rounded up by 90%: 81 sheep / .9 = 90 sheep. Then multiply that number by 10% to find the number that are in the hills: 90 sheep * 10% = 9 sheep.
The answer: 9
Reverse engineering the question:
Carla's sheepdog rounded up 90% of her sheep, but the remaining 10% wandered off into the hills. If there are 81 sheep in the pen, how many are out in the wilderness?