We have a question: There are three dogs in the backyard. They like apples, blueberries, and bonnies. The first dog, which likes apples, eats 3 times as many apples as the number of blueberries eaten by the second dog that likes blueberries. The dog that likes blueberries eats 3/4 times as many blueberries as the number of bonnies eaten by the third dog. If the dog that likes bonnies ate 60 of them, calculate the total number of fruits eaten by the three dogs?
And an answer: 240
So how you got the answer?
The dog that likes blueberries ate 3 / 4 * 60 = 45 blueberries, 3 / 4 as many blueberries as the number of bonnies eaten by the third dog. The total number of fruits eaten by the dog that likes bonnies and the one that like blueberries is 45 + 60 = 105. The first dog that likes apples ate 3 * 45 = 135 apples which are 3 times as many blueberries as the number eaten by the dog that likes blueberries. In total, the three dogs ate 105 + 135 = 240 fruits.

We have a question: While preparing balloons for Eva's birthday party, her mom bought 50 balloons and 1800cm of helium. One balloon needs 50cm to float high enough to touch the ceiling, and she can fill any remaining balloon with ordinary air. If she used up all of the helium and inflated every balloon, how many more balloons are touching the ceiling than not?
And an answer: 22
So how you got the answer?
50cm will make one balloon touch the ceiling so 1800cm will make 1800 / 50 = 36 balloons touch the ceiling. There are 50 balloons in total so 50 - 36 = 14 balloons will not float since they were filled with ordinary air. There are 36 - 14 = 22 more balloons touching the ceiling than not.

We have a question: James spends 40 years teaching. His partner has been teaching for 10 years less. How long is their combined experience?
And an answer: 70
So how you got the answer?
His partner has been teaching for 40 - 10 = 30 years. So together they have 40 + 30 = 70 years of experience.