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: 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
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Q: Question: What is the next number of the following sequence
10, 7, 12, 10, 14, __ ?

 Option A: 13

 Option B: 14

 Option C: 15

 Option D: 16

 Option E: 17

A: Option A
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Q: Question: If goods be purchased for Rs.840 and one-fourth be sold at a loss of 20% at what gain percent should the remainder be sold so as to gain 20% on the whole transaction?

 Option A: 33 1/8%

 Option B: 33 7/3%

 Option C: 33 1/3%

 Option D: 37 1/3%

 Option E: 32 1/3%

A:
Option C
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