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: Ajit has a certain average for 9 innings. In the tenth innings, he scores 100 runs thereby increasing his average by 8 runs. His new average is:

Option A: 20

Option B: 21

Option C: 28

Option D: 32

Option E: None
[A]: Option C

[Q]: Question: A started a business with an investment of Rs. 70000 and after 3 months B joined him investing Rs. 120000. If the profit at the end of a year is Rs. 43000, then the share of B is?

Option A: 33888

Option B: 36000

Option C: 27778

Option D: 27772

Option E: 81122
[A]: Option B

[Q]: Question: If 17m n = p, then which of the following represents the average (arithmetic mean) of m, n, and p, in terms of m?

Option A: 2m 1

Option B: 4m

Option C: 6m

Option D: m/5

Option E: 6m/5
[A]:
Option C