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: 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
[EX A]: Option B

[EX Q]: Question: In a company 200 persons, working 6 hours per day complete 1/3 rd of the work in 7 days. Employee number of additional persons, working 4 hrs per day, required to complete the remaining work in 15 days is :

 Option A: 60

 Option B: 80

 Option C: 90

 Option D: 70

 Option E: 50
[EX A]: Option B

[EX Q]: Question: The largest number in a series of consecutive even integers is w. If the number of integers is n, what is the smallest number in terms of w and n?

 Option A: w– 2n

 Option B: w–n + 1

 Option C: w– 2(n– 1

 Option D: n– 6 + w

 Option E: w – n/2
[EX A]:
Option C