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.

Example Input: Question: Three number are in the ratio 5:6:7. The sum of its largest and smallest numbers equals the sum of the third number and 48. Find the third number?

 Option A: 87

 Option B: 57

 Option C: 48

 Option D: 26

 Option E: 28
Example Output: Option C

Example Input: Question: If a Bus is travelling at a speed of 45 kmph, crosses a pole in 1 sec, then the length of train is?

 Option A: 12 m

 Option B: 12.3 m

 Option C: 12.5 m

 Option D: 12.8 m

 Option E: 13 m
Example Output: Option C

Example Input: Question: The cost of 9 kgs. of sugar is Rs.279. What is the cost of .153 kgs. of sugar?

 Option A: Rs.3.377

 Option B: Rs.4.473

 Option C: Rs.4.377

 Option D: Rs.4.743

 Option E: None of these
Example Output:
Option D