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

[EX Q]: Problem: what is the 149 th digit to the right of the decimal point in the decimal form of 30 / 33 ?
[EX A]: 9

[EX Q]: Problem: a train 360 m long runs with a speed of 45 km / hr . what time will it take to pass a platform of 150 m long ?
[EX A]: 40.8 sec

[EX Q]: 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 .
[EX A]:
28,200