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: Kaushalya can do a work in 20 days, while kaikeyi can do the same work in 25 days. They started the work jointly.Few days later Sumitra also joined them and thus all of them completed the whole work in 10 days. All of them were paid total Rs.700. What is the Share of Sumitra?

Option A: Rs.130

Option B: Rs.185

Option C: Rs.70

Option D: can't be determined

Option E: None of these

Output: Option C

Input: Consider Input: Question: How many odd 4-digit positive integers R that are multiples of 5 can be formed without using the digit 3?

Option A: 648

Option B: 729

Option C: 900

Option D: 1296

Option E: 3240

Output: Option A

Input: Consider Input: Question: A student took five papers in an examination, where the full marks were the same for each paper. His marks in these papers were in the proportion of 5 : 6 : 7 : 8 : 9. In all papers together, the candidate obtained 60% of the total marks. Then the number of papers in which he got more than 50% marks is

Option A: 2

Option B: 3

Option C: 4

Option D: 5

Option E: 1
Output: Option D