The task is to generate the correct answer for a given math problem.

Input: Consider Input: Problem: you enter a weight loss challenge game and manage to lose 12 % of your body weight . for the final weigh in you are forced to wear clothes that add 2 % to your weight . what percentage of weight loss is measured at the final weigh in ?

Output: 10.24 %

Input: Consider Input: Problem: bob wants to run a mile in the same time as his sister . if bob ' s time for a mile is currently 11 minutes 20 seconds and his sister ' s time is currently 9 minutes 36 seconds , by what percent does bob need to improve his time in order run a mile in the same time as his sister ?

Output: 15

Input: Consider Input: Problem: the average runs scored by a batsman in 30 matches is 50 . in the next 15 matches the batsman scored an average of 26 runs . find his average in all the 45 matches ?
Output: 42