You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

At the fair there were 30 people in line for the bumper cars . If 10 of them got tired of waiting and left and 5 more got in line , how many people would be in line ?
25

Each chocolate bar in a box cost $ 3 . If a box had 7 bars total and Olivia sold all but 4 bars , how much money would she have made ?
9

Vincent bought 10 books about animals , 1 book about outer space , and 3 books about trains . Each book cost $ 16 . How much did Vincent spend on the books ?

224

