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 300 m long train crosses a platform in 33 sec while it crosses a signal pole in 18 sec. What is the length of the platform?

 Option A: 286 m

 Option B: 250 m

 Option C: 277 m

 Option D: 278 m

 Option E: 267 m

SOLUTION: Option B

PROBLEM: Question: Evaluate combination
100C98=100!/(98)!(2)!

 Option A: 4950

 Option B: 1510

 Option C: 4170

 Option D: 3170

 Option E: None of these

SOLUTION: Option A

PROBLEM: Question: A bag contains five white and four red balls. Two balls are picked at random from the bag. What is the probability that they both are different color?

 Option A: 5/8

 Option B: 5/9

 Option C: 5/6

 Option D: 5/3

 Option E: 5/1

SOLUTION:
Option B