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: 8 persons can build a wall 140m long in 42 days. In how many days can 30 persons complete a similar wall 100 m long?

 Option A: 12

 Option B: 10

 Option C: 8

 Option D: 6

 Option E: 5

A: Option C
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Q: Question: The radius of a cylinder is 8 m, height 14 m. The volume of the cylinder is:

 Option A: 2816

 Option B: 5500

 Option C: 3300

 Option D: 1100

 Option E: 4400

A: Option A
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Q: Question: If one-third of one-fourth of a number is 12, then three-tenth of that number is:
A. 35

 Option A: 43.2

 Option B: 87

 Option C: 26

 Option D: 54

 Option E: 01

A:
Option A
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