Question: The central Texas countryside contains many toads that come out at night. For every green toad, there are 25 brown toads, and one-quarter of the brown toads are spotted. If there are 50 spotted brown toads per acre, how many green toads are there per acre?
Answer with step-by-step thinking: If there are 50 spotted brown toads per acre, and this represents one - quarter of the brown toads, then there are 50 * 4 = 200 brown toads per acre. If for every 25 brown toads there is one green toad, then there are 200 / 25 = 8 green toads per acre.
So the answer is 8.


Question: A pool has 48 blue tiles and 32 red tiles. If the pool needs 100 tiles to be completed, how many more tiles are needed?
Answer with step-by-step thinking: The pool currently has 48 + 32 = 80 tiles. The pool needs 100 - 80 = 20 more tiles to be completed.
So the answer is 20.


Question: A leaf is being blown down a sidewalk by swirling gusts of wind. For every five feet that a gust blows it forward, the wind swirls and blows it back two feet. How many feet has it traveled down the sidewalk after 11 gusts of wind?
Answer with step-by-step thinking:
Each gust blows the leaf forward 5 feet, so 11 gusts will blow it forward 5 * 11 = 55 feet. Each swirl after a gust blows it back 2 feet, so 11 swirls will blow it back 2 * 11 = 22 feet. After 11 gusts, the leaf has traveled 55 - 22 = 33 feet down the sidewalk.
So the answer is 33.