Question: John adopts a dog from a shelter. The dog ends up having health problems and this requires 3 vet appointments, which cost $400 each. After the first appointment, John paid $100 for pet insurance that covers 80% of the subsequent visits. How much did he pay in total?
Answer: He got a discount of 400 * .8 = $320. He got that discount for 3 - 1 = 2 visits. So each of those visits cost 400 - 320 = $80. So he paid 2 * 80 = $160 for those visits. That means he paid a total of 400 + 160 + 100 = $660. The answer is 660.

Question: In a basketball game, Jon scored 3 points. Jack scored 5 points more than Jon, and Tom scored 4 less than the points of Jon and Jack together. How many points did they score altogether?
Answer: Jack scored 3 + 5 = 8 points. Together, Jon and Jack scored 8 + 3 = 11 points. So, Tom scored 11 - 4 = 7 points. Thus, Jon, Jack, and Tom scored a total of 3 + 8 + 7 = 18 points. The answer is 18.

Question: An apple tree has three times as many apples as the number of plums on a plum tree. If Damien picks 3/5 of the fruits from the trees, calculate the total number of plums and apples remaining on the tree if there were 180 apples on the apple tree before Damien picked any of the fruits.
Answer: Initially, the were 180 / / 3 = 60 plums on the plum tree. When Damien picked 3 / 5 of the apples from the apple tree, he picked 3 / 5 * 180 = 108 apples. The number of apples remaining on the apple tree is 180 - 108 = 72. The number of plums that Damien picked from the plum tree is 3 / 5 * 60 = 36. The number of plums remaining on the plum tree is 60 - 36 = 24. The total number of fruits remaining on the trees is 72 apples + 24 plums = 96. The answer is 96.

Question: Mario's salary increased by 40% to $4000 this year. Bob's salary from last year was equal to three times Mario's salary this year. If Bob's current salary is 20% more than his salary last year, what is his current salary?
Answer:
Last year, Bob's salary was equal to three times Mario's salary this year, meaning Bob was earning 3 * $4000 = $12000. If Bob's salary increased by 20% this year, he is earning 20 / 100 * $12000 = $2400 more. Bob's total salary this year is $12000 + $2400 = $14400. The answer is 14400.