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: Rs.8000 become Rs.11256 in a certain interval of time at the rate of 5% per annum of C.I. Find the time?

Option A: 6 YEARS

Option B: 7

Option C: 5

Option D: 3

Option E: 4

A: Option B
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Q: Question: In a local school district, the high school and middle school each received r dollars toward funding for the student arts program. The high school enrolled 600 students and the middle school enrolled 300 students. Later, the middle school transferred s dollars to the high school so that they would have received the same funding per student. Which of the following is equivalent to s?

Option A: r/3

Option B: r/2

Option C: 2r

Option D: 3r

Option E: r/9

A: Option A
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Q: Question: Tough and Tricky questions: Combinations.
Four students - 2 boys and 2 girls - are to sit side by side for a makeup exam. How many ways could they arrange themselves given that no two boys and no two girls can sit next to one another?

Option A: 8

Option B: 36

Option C: 72

Option D: 240

Option E: 720

A:
Option A
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