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: You are renting an apartment and you need √676 for each side, how many feet are you looking to measure?

 Option A: 21

 Option B: 22

 Option C: 23

 Option D: 24

 Option E: 26
[EX A]: Option E

[EX Q]: Question: The greatest number of four digits which is divisible by 15, 25, 40 and 75 is:

 Option A: 9400

 Option B: 9600

 Option C: 9800

 Option D: 9000

 Option E: 9200
[EX A]: Option B

[EX Q]: Question: Find the least number of complete years in which a sum of money put out at 25% compound interest will be more than double of itself?

 Option A: 3

 Option B: 6

 Option C: 9

 Option D: 4

 Option E: 3
[EX A]:
Option D