TASK DEFINITION: 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.
PROBLEM: Question: A train speeds past a pole in 15 sec and a platform 140 m long in 25 sec, its length is?

 Option A: 210

 Option B: 150

 Option C: 160

 Option D: 170

 Option E: 180

SOLUTION: Option A

PROBLEM: Question: 5, 9, 17, 29, 45, ?

 Option A: 65

 Option B: 56

 Option C: 74

 Option D: 57

 Option E: 32

SOLUTION: Option A

PROBLEM: Question: If four coins are tossed, the probability of getting two heads and two tails is -.

 Option A: 3/8

 Option B: 6/11

 Option C: 2/5

 Option D: 4/5

 Option E: 5/11

SOLUTION:
Option A