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.
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Question: Question: A board of length L feet is cut into two pieces such that the length of piece A is 4 feet less than three times the length of piece B. Which of the following is the length, in feet, of piece A?

 Option A: (L+4

 Option B: (L-4

 Option C: (3L-4

 Option D: (3L-1

 Option E: (3L+4

Answer: Option C


Question: Question: The greatest number that divides 180, 565 and 705 leaving remainder 5, 5 and 5 respectively is:

 Option A: 31

 Option B: 33

 Option C: 35

 Option D: 38

 Option E: 39

Answer: Option C


Question: Question: Two trains start simultaneously from opposite ends of a 160-km route and travel toward each other on parallel tracks. Train X, traveling at a constant rate, completes the 160-km trip in 5 hours. Train Y, travelling at a constant rate, completes the 160-km trip in 3 hours. How many kilometers had Train X traveled when it met Train Y?

 Option A: 56

 Option B: 58

 Option C: 60

 Option D: 62

 Option E: 64

Answer:
Option C