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 car going at 40 miles per hour set out on an 90-mile trip at 9:00 A.M. Exactly 10 minutes later, a second car left from the same place and followed the same route. How fast, in miles per hour, was the second car going if it caught up with the first car at 10:30 A.M.?

Option A: 45

Option B: 50

Option C: 53

Option D: 55

Option E: 90

SOLUTION: Option E

PROBLEM: Question: X is a prime number bigger than 10. Also, Y = X+X^3+X^5+X^7. What is definitely true about Y?

Option A: Y is a prime number.

Option B: Y is odd.

Option C: Y is even.

Option D: Y is divisible by 3.

Option E: Y is divisible by 7.

SOLUTION: Option C

PROBLEM: Question: Roger can read a book in k minutes. What part of the book can he read in 9 minutes? (k>8)

Option A: 8+k

Option B: 8/k

Option C: k/8

Option D: (k+ 8

Option E: (k-8

SOLUTION:
Option C