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: A library has an average of 1000 visitors on Sundays and 700 on other days. The average number of visitors per day in a month of 30 days beginning with a Sunday is :

 Option A: 740

 Option B: 750

 Option C: 760

 Option D: 770

 Option E: 775

Ex Output:
Option B


Ex Input:
Question: A bag contains 5 red balls, 5 green balls and 6 white balls. A ball is drawn at
random from the box. What is the probability that the ball drawn is either red or green?

 Option A: 2/5

 Option B: 3/5

 Option C: 1/5

 Option D: 7/15

 Option E: 5/8

Ex Output:
Option E


Ex Input:
Question: Two taps can separately fill a cistern 5 minutes and 7.5 minutes respectively and when the waste pipe is open, they can together fill it in 18 minutes. The waste pipe can empty the full cistern in?

 Option A: 3.8

 Option B: 3.7

 Option C: 3.6

 Option D: 3.9

 Option E: 3.5

Ex Output:

Option C