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: The ages of two persons differ by 16 years. If 6 years ago , the elder one be 3 times as old as the younger one, find their present ages .

 Option A: 10 years and 18 years

 Option B: 18 years and 26 years

 Option C: 20 years and 28 years

 Option D: 14 years and 30 years

 Option E: 16 years and 25 years

A: Option D
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Q: Question: If 12 men do a work in 80 days, in how many days will 16 men do it?

 Option A: 17 days

 Option B: 19 days

 Option C: 15 days

 Option D: 60 days

 Option E: 14 days

A: Option D
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Q: Question: 20, 19, 17, ?, 10, 5

 Option A: 15

 Option B: 14

 Option C: 13

 Option D: 12

 Option E: 11

A:
Option B
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