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: Two trains start simultaneously from opposite ends of a 160-km route and travel toward each other on parallel tracks. Train X, traveling at a constant rate, completes the 160-km trip in 5 hours. Train Y, travelling at a constant rate, completes the 160-km trip in 3 hours. How many kilometers had Train X traveled when it met Train Y?

Option A: 56

Option B: 58

Option C: 60

Option D: 62

Option E: 64

Ex Output:
Option C

Ex Input:
Question: Mr. Karan borrowed a certain amount at 6% per annum simple interest for 9 years. After 9 years, he returned Rs. 8010/-. Find out the amount that he borrowed.

Option A: s. 5266

Option B: s. 5269

Option C: s. 5228

Option D: s. 5201

Option E: s. 52192

Ex Output:
Option D

Ex Input:
Question: The average of 11 results is 50, if the average of first five results is 49 and that of the last seven is 52. Find the fifth result?

Option A: 55

Option B: 56

Option C: 57

Option D: 58

Option E: 59

Ex Output:
Option E