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 length of a rectangular landscape is 4times its breadth. There is a playground in it whose area is 1200 square mtr & which is 1/3rd of the total landscape. What is the length of the landscape?

 Option A: 100

 Option B: 110

 Option C: 120

 Option D: 140

 Option E: 150

A: Option C
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Q: Question: Pipe A can fill a tank in 16 minutes and pipe B cam empty it in 24 minutes. If both the pipes are opened together after how many minutes should pipe B be closed, so that the tank is filled in 30 minutes?

 Option A: 20

 Option B: 16

 Option C: 24

 Option D: 28

 Option E: 21

A: Option E
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Q: Question: each interior angle of a regular polygon is 120 degrees greator than each exterior angle.how many sides are there in the polygon

 Option A: 6

 Option B: 8

 Option C: 12

 Option D: 16

 Option E: 18

A:
Option C
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