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

Ex Input:
Problem: a jeep takes 9 hours to cover a distance of 480 km . how much should the speed in kmph be maintained to cover the same direction in 3 / 2 th of the previous time ?

Ex Output:
35 kmph

Ex Input:
Problem: find the principle on a certain sum of money at 9 % per annum for 2 2 / 5 years if the amount being rs . 1120 ?

Ex Output:
921.0

Ex Input:
Problem: the cost price of 20 articles is the same as the selling price of x articles . if the profit is 25 % , then the value of x is :

Ex Output:
16