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.

Input: Consider Input: 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

Output: Option C


Input: Consider Input: Question: (3x + 1) (2x - 5) = ax^2 + kx + n . What is the value of a - n + k ?

 Option A: 5

 Option B: 8

 Option C: 9

 Option D: 14

 Option E: 11

Output: Option D


Input: Consider Input: Question: one person Tharak speed with the current is 10 km/hr and the speed of the current is 2 km/hr. Tharak's speed against the current is:

 Option A: 6 km/hr

 Option B: 1 km/hr

 Option C: 2 km/hr

 Option D: 3 km/hr

 Option E: 4 km/hr


Output: Option A