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.

[EX Q]: Question: Divide 71 into 2 parts such that 1 part exceeds the other by 8. What are the 2 no.'s in that part?

Option A: 29

Option B: 30

Option C: 31

Option D: 35

Option E: 38
[EX A]: Option C

[EX Q]: Question: A and B complete a job in 6 days. A alone can do the job in 15 days. If B works alone, how many days will it take to complete the job?

Option A: 8

Option B: 10

Option C: 12

Option D: 14

Option E: 16
[EX A]: Option B

[EX Q]: Question: Three numbers are in the ratio 5 : 6 : 7. The sum of its longest and smallest numbers equals the sum of the third number and 54. Find the third number?

Option A: A

Option B: B

Option C: C

Option D: D

Option E: E
[EX A]:
Option E