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: A and B complete a job in 6 days. A alone can do the job in 15 days. If B works alone, how many days will it take to complete the job?

 Option A: 8

 Option B: 10

 Option C: 12

 Option D: 14

 Option E: 16

A: Option B
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Q: Question: How much more would Rs.20000 fetch, after two years, if it is put at 20% p.a. compound interest payable half yearly than if is put at 20% p.a. compound interest payable yearly?

 Option A: 482

 Option B: 297

 Option C: 278

 Option D: 298

 Option E: 279

A: Option A
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Q: Question: A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?

 Option A: 40 sec

 Option B: 42 sec

 Option C: 45 sec

 Option D: 48 sec

 Option E: 60 sec

A:
Option A
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