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

[EX Q]: Problem: 90 % of the population of a village is 36000 . the total population of the village is ?
[EX A]: 4000

[EX Q]: Problem: 60 is to be divided into two parts such that the sum of 10 times the first and 22 times the second is 780 . the bigger part is :
[EX A]: 45

[EX Q]: Problem: a train 250 m long is running at a speed of 45 km / hr . in what time will it pass a bridge 150 m long ?
[EX A]:
32 sec