TASK DEFINITION: The task is to generate the correct answer for a given math problem.
PROBLEM: Problem: a train running at the speed of 72 km / hr crosses a pole in 9 seconds . find the length of the train .

SOLUTION: 180 meter

PROBLEM: Problem: how many numbers between 400 and 1000 can be made with the digits 2 , 3,4 , 5,6 and 0 ?

SOLUTION: 60

PROBLEM: Problem: a , b and c start a business each investing 20,000 . after 5 months a withdrew 5000 , b withdrew 4000 and c invests 6000 more . at the end of the year , a total profit of 69,900 was recorded . find the share of b .

SOLUTION:
28,200