You are given a math word problem and you are supposed to make use of mathematical concepts like probability, combinatorics, linear equations, sequences/series, or simple operators like addition, subtraction, division, or multiplication to answer the given question. Choose the best option from the 5 given options and report that option.

Ex Input:
Question: How long does a train 110 m long running at the speed of 72 km/hr takes to cross a bridge 132 m length?

 Option A: 12.5

 Option B: 12.1

 Option C: 12.9

 Option D: 12.7

 Option E: 12.2

Ex Output:
Option B


Ex Input:
Question: If 3^x*4^y = 1,594,323 and x – y = 13, then x = ?

 Option A: 10

 Option B: 11

 Option C: 12

 Option D: 13

 Option E: 14

Ex Output:
Option D


Ex Input:
Question: A train sets off at 9:00 am at the speed of 70 km/h. Another train starts at 9:30 am in the same direction at the rate of 84 km/h. At what time will the second train catch the first train?

 Option A: 11:00

 Option B: 11:30

 Option C: 12:00

 Option D: 12:30

 Option E: 1:00

Ex Output:

Option C