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: A tank holds x gallons of a saltwater solution that is 20% salt by volume. One Fourth of the water is evaporated, leaving all of the salt. When 5 Gallons of water and 10 gallons of salt are added, the resulting mixture is 33 1/3 % salt by volume. What is the value of x?

 Option A: 37.5

 Option B: 75

 Option C: 100

 Option D: 150

 Option E: 175

A: Option B
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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
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Q: Question: If x = -5/4 and y = -3/2, what is the value of the expression -2x – y^2?

 Option A: 1/4

 Option B: -1

 Option C: 5/4

 Option D: 3/2

 Option E: 3/4

A:
Option A
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