TASK DEFINITION: The task is to generate the correct answer for a given math problem.
PROBLEM: Problem: meena wrote all the numbers from 1 to 29,999 inclusive . how many digits did she write in total ?

SOLUTION: 138,889

PROBLEM: Problem: income and expenditure of a person are in the ratio 7 : 6 . if the income of the person is rs . 14000 , then find his savings ?

SOLUTION: 2000

PROBLEM: Problem: a pump will fill a tank in 3 hours . because of a leak in the tank , it took 3 hours 30 min to fill the tank . in what time the leak can drain out all the water of the tank and will make tank empty ?

SOLUTION:
21 hrs