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

Ex Input:
Problem: how many numbers are divisible by both 2 and 3 up to 300 ?

Ex Output:
50


Ex Input:
Problem: a train running at the speed of 40 km / hr crosses a pole in 9 seconds . what is the length of the train ?

Ex Output:
100 meter


Ex Input:
Problem: from a group of 3 boys and 3 girls , 4 children are to be randomly selected . what is the probability that equal numbers of boys and girls will be selected ?

Ex Output:

3 / 5