TASK DEFINITION: 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.
PROBLEM: Question: The average of 4,8,12 and x is 10. Find the value of x?

 Option A: 10

 Option B: 16

 Option C: 15

 Option D: 24

 Option E: 12

SOLUTION: Option B

PROBLEM: Question: If a committee of 2 people is to be selected from among 5 married couples so that the committee does not include two people who are married to each other, how many such committees are possible?

 Option A: 20

 Option B: 40

 Option C: 50

 Option D: 80

 Option E: 120

SOLUTION: Option B

PROBLEM: Question: The initial price of an article is Rs.4000 which increases 40% increse in its price in the first year,a 20% decrease in the second year and a 20% increase in the next year. What is the final price of the article ?

 Option A: Rs.2928

 Option B: Rs.5928

 Option C: Rs.3928

 Option D: Rs.R4928

 Option E: Rs.6928

SOLUTION:
Option D