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: An inspector rejects 15% of the meters as defective. How many will he examine to reject 15?

 Option A: A

 Option B: B

 Option C: C

 Option D: D

 Option E: E

A: Option A
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Q: Question: If the average (arithmetic mean) of five consecutive negative integers is 8k – 1, what is the difference between the greatest and least of the five integers?

 Option A: 4K

 Option B: 4k^2 -4k

 Option C: 4-4k

 Option D: 4

 Option E: 4k+4

A: Option D
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Q: Question: 120 liters of a mixture contains milk and water in the ratio 4:2. If 10 liters of this mixture be replaced by 10 liters of milk, the ratio of milk to water in the new mixture would be?

 Option A: 8:6

 Option B: 9:3

 Option C: 9:4

 Option D: 9:6

 Option E: 8:2

A:
Option C
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