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.

[EX Q]: Question: A, B, C are three consecutive positive integers (A>B>C). What is the value of the expression 2A +B +2C?

 Option A: 6A+7.

 Option B: 5A+1.

 Option C: 5A-5.

 Option D: 6A-5.

 Option E: 6A-7.
[EX A]: Option C

[EX Q]: Question: A student missed 6% of the questions on a test. If the student missed 12 questions, how many questions were on the test?

 Option A: 100

 Option B: 150

 Option C: 200

 Option D: 250

 Option E: 300
[EX A]: Option C

[EX Q]: Question: How many litres of pure acid are there in 12 litres of a 40% solution

 Option A: 3.6

 Option B: 4.8

 Option C: 3.5

 Option D: 2.3

 Option E: 4.4
[EX A]:
Option B