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: If the least common multiple of two prime numbers x and y is 10, where x > y, then the value of 2x + y is

 Option A: 7

 Option B: 9

 Option C: 11

 Option D: 12

 Option E: 21

A: Option D
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Q: Question: A group of boy scouts and girls scouts is going on a rafting trip. 45% of the scouts arrived with signed permission slips. If 60% of the scouts were boy scouts and 25% of the boy scouts arrived with signed permission slips, then what percentage of the scouts were girl scouts who arrived with signed permission slips?

 Option A: 20

 Option B: 21

 Option C: 25

 Option D: 28

 Option E: 30

A: Option E
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Q: Question: A train sets off at 2 p.m. at the speed of 70 kmph. Another train starts at 1:30 p.m. in the same direction at the rate of 85 kmph. At what time the trains will meet?

 Option A: 10.18 p.m

 Option B: 10.29 p.m

 Option C: 8.30 p.m

 Option D: 10.38 p.m

 Option E: 10.32 p.m

A:
Option C
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