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.

[Q]: Question: The radius of a cylinder is 8 m, height 14 m. The volume of the cylinder is:

 Option A: 2816

 Option B: 5500

 Option C: 3300

 Option D: 1100

 Option E: 4400
[A]: Option A


[Q]: Question: Car X began traveling at an average speed of 35 miles per hour. After 72 minutes, car Y began traveling at an average speed of 41 miles per hour. When both cars had traveled the same distance, both cars stopped. How many miles did car X travel from the time car Y began traveling until both cars stopped?

 Option A: 140

 Option B: 175

 Option C: 210

 Option D: 245

 Option E: 280
[A]: Option D


[Q]: Question: C individuals pledged to pay equal contributions so that a charity’s goal of $x could be reached. If d of the contributors failed to pay their share, which of the following represents the additional number of dollars that each of the remaining individuals would have to pay in order to allow the charity to reach its goal?

 Option A: dx / C

 Option B: x / (C-d

 Option C: d / (C-dx

 Option D: x / (C(C-d

 Option E: dx / (C(C-d
[A]:
Option E