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: How much time does a train 150 metres long running at 90 km/hr take to pass a pole?

 Option A: 7.9s

 Option B: 6s

 Option C: 7.5s

 Option D: 7.6s

 Option E: 7.4s
[EX A]: Option B

[EX Q]: Question: Find the largest 4 digit number which isexactly divisible by 88?

 Option A: 4567

 Option B: 3588

 Option C: 9944

 Option D: 5465

 Option E: 6784
[EX A]: Option C

[EX Q]: Question: Seed mixture X is 40 percent ryegrass and 60 percent bluegrass by weight; seed mixture Y is 25 percent ryegrass and 75 percent fescue. If a mixture of X and Y contains 30 percent ryegrass, what percent of the weight of this mixture is X ?

 Option A: 10%

 Option B: 33.33 %

 Option C: 40%

 Option D: 50%

 Option E: 66.66 %
[EX A]:
Option B