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: The area of a parallelogram is 72sq m and its altitude is twice the corresponding base. Then the length of the base is?

 Option A: 6

 Option B: 9

 Option C: 7

 Option D: 62

 Option E: 2
[A]: Option A


[Q]: Question: If x and y are integers, what is the least positive number of 24x+18y?

 Option A: 3

 Option B: 6

 Option C: 9

 Option D: 12

 Option E: 15
[A]: Option B


[Q]: Question: The average of six numbers is 3.9. The average of two of them is 3.4, while the average of the other two is 3.85. What is the average of the remaining two numbers ?

 Option A: 4.7

 Option B: 4.45

 Option C: 4.2

 Option D: 4.1

 Option E: 4.9
[A]:
Option B