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: One half of the workers at the biscuit company is technician,quarter is clerk,one-fifth are administrative and the other 25 are supervisors. How many workers total are there in the biscuit company?

Option A: 250

Option B: 366

Option C: 400

Option D: 500

Option E: 2500
[A]: Option D

[Q]: Question: 5 men are equal to as many women as are equal to 8 boys. All of them earn Rs.210 only. Men's wages are?

Option A: 6Rs

Option B: 2Rs

Option C: 4Rs

Option D: 9Rs

Option E: 14Rs
[A]: Option E

[Q]: Question: A 20 kg metal bar made of alloy of tin and silver lost 2 kg of its weight in the water. 10 kg of tin loses 1.375 kg in the water; 5 kg of silver loses 0.375 kg. What is the ratio of tin to silver in the bar?

Option A: 1/4

Option B: 2/5

Option C: 1/2

Option D: 3/5

Option E: 2/3
[A]:
Option E