instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: the average score of a cricketer in 2 matches is 60 and in other 3 matches is 50 . then find the average score in all the 5 matches ?
answer:
54


question:
Problem: if a = 105 and a ^ 3 = 21 × 25 × 45 × z , what is the value of z ?
answer:
49


question:
Problem: a mail handler needs 3 hours to sort the mail . his assistant takes 6 hours to sort the mail . how many hours will it take for both of them working together to sort the mail ?
answer:

2