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.

Q: 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

A: Option C
****
Q: Question: A number when divided by 5 gives a number which is 8 more than the remainder obtained on dividing the same number by 34. Such a least possible number N is

 Option A: 74

 Option B: N=75

 Option C: N=175

 Option D: N=680

 Option E: 690

A: Option B
****
Q: Question: A confectioner decides to sell all of his pastry due to the coming holiday. His pastry goods are equally divided among a group of 15 regular customers. If only 49 customers come to the bakery, each one will receive 6 less pastry goods. How much pastry does the confectioner needs to sell?

 Option A: 450.

 Option B: 459.

 Option C: 432.

 Option D: 502.

 Option E: 522.

A:
Option A
****