Given a math problem with context and a question and 5 answer choices, the task is to provide the correct answer choice based on the problem. You must choose one of the given answer choices by letter: a, b, c, d, or e; anything else is invalid.

[EX Q]: Problem: 3 candidates in an election and received 6136, 7636 and 11628 votes respectively. what % of the total votes did the winning candidate got in that election ?
Options: a. 46 %, b. 49 %, c. 57 %, d. 59 %, e. 61 %
[EX A]: a

[EX Q]: Problem: if the wages of 6 men for 15 days be rs. 2100, then find the wages of for 12 days.
Options: a. rs. 2420, b. rs. 2500, c. rs. 2520, d. rs. 2020, e. rs. 2650
[EX A]: c

[EX Q]: Problem: a person borrows 9000 for 9 years at 3 % p. a. simple interest. he immediately lends it to another person at 7 % p. a. for 9 years. find his gain in the transaction per year.
Options: a. 380, b. 360, c. 340, d. 300, e. 180
[EX A]:
b