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

[EX Q]: Problem: find the least number must be subtracted from 62575 so that remaining number is divisible by 99 .
[EX A]: 7

[EX Q]: Problem: a , b and c start a business each investing 20,000 . after 6 months a withdrew 5000 , b withdrew 4000 and c invests 6000 more . at the end of the year , a total profit of 67,600 was recorded . find the share of b .
[EX A]: 21,600

[EX Q]: Problem: dan can do a job alone in 12 hours . annie , working alone , can do the same job in just 9 hours . if dan works alone for 8 hours and then stops , how many hours will it take annie , working alone , to complete the job ?
[EX A]:
3