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: 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: In a photography exhibition, some photographs were taken by Octavia the photographer, and some photographs were framed by Jack the framer. Jack had framed 24 photographs taken by Octavia, and 12 photographs taken by other photographers. If 36 of the photographs in the exhibition were taken by Octavia, how many photographs were either framed by Jack or taken by Octavia?

Option A: 36

Option B: 48

Option C: 72

Option D: 96

Option E: 108
[A]: Option B

[Q]: Question: If 3^x*4^y = 1,594,323 and x y = 13, then x = ?

Option A: 10

Option B: 11

Option C: 12

Option D: 13

Option E: 14
[A]:
Option D