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: There are 14 stations between Hyderabad and Bangalore. How many second class tickets have to be printed, so that a passenger can travel from any station to any other station?

 Option A: 288

 Option B: 267

 Option C: 261

 Option D: 211

 Option E: 240

Ex Output:
Option E


Ex Input:
Question: How many pieces of 0.85 metres can be cut from a rod 42.5 metres long?

 Option A: 30

 Option B: 40

 Option C: 50

 Option D: 60

 Option E: 70

Ex Output:
Option C


Ex Input:
Question: Smith can do a work in 15 days while Johnson can do it in 25 days. How long will they take if both work together?

 Option A: 3 4/9 days

 Option B: 8 4/9 days

 Option C: 9 3/8 days

 Option D: 6 3/8 days

 Option E: 7 3/8 days

Ex Output:

Option C