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: The average monthly income of P and Q is Rs. 5050. The average monthly income of Q and R is Rs. 6250 and the average monthly income of P and R is Rs. 5200. The monthly income of P is:

 Option A: 3500

 Option B: 4000

 Option C: 4050

 Option D: 5000

 Option E: 6000
[EX A]: Option B

[EX Q]: Question: Find the value of y from (12)^3 x 6^4 ÷ 432 = y?

 Option A: 3451

 Option B: 3467

 Option C: 3891

 Option D: 4601

 Option E: 5184
[EX A]: Option E

[EX Q]: Question: 360 metres long yard, 31 trees are palnted at equal distances, one tree being at each end of the yard. What is the distance between 2consecutive trees

 Option A: 10

 Option B: 12

 Option C: 14

 Option D: 16

 Option E: 17
[EX A]:
Option B