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.

Input: Consider Input: Question: The ratio of three numbers is 1:2:3 and their sum is 60. The second number of the three numbers is?

 Option A: 24

 Option B: 26

 Option C: 20

 Option D: 29

 Option E: 30

Output: Option C


Input: Consider Input: Question: If the ratio of a to b is 2 to 3 and the ratio of b to c is 1 to 5, what is the ratio of a to c?

 Option A: 4/15

 Option B: 1/3

 Option C: 2/15

 Option D: 4/5

 Option E: 7/6

Output: Option C


Input: Consider Input: Question: A can do a piece of work in 5 hours; B and C together can do it in 3 hours, while A and C together can do it in 2 hours. How long will B alone take to do it?

 Option A: 30

 Option B: 20

 Option C: 10

 Option D: 6

 Option E: 5


Output: Option A