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: 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: How many positive integers G less than 10,000 are such that the product of their digits is 210?

 Option A: 24

 Option B: 30

 Option C: 48

 Option D: 54

 Option E: 72

Answer: Option D


Question: Question: A number is increased by 20% and then decreased by 20%, the final value of the number is ?

 Option A: does not change

 Option B: decreases by 2%

 Option C: increases by 4%

 Option D: decreases by 4%

 Option E: None of these

Answer:
Option D