TASK DEFINITION: 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.
PROBLEM: Problem: in a mayoral election, candidate x received 1 / 2 more votes than candidate y, and candidate y received 2 / 5 fewer votes than z. if z received 25000 votes how many votes did candidate x received ?
Options: a. 18000, b. 22500, c. 24000, d. 26000, e. 32000

SOLUTION: b

PROBLEM: Problem: a is twice as good a work man as b and together they finish the work in 4 days. in how many days a alone can finish the work ?
Options: a. 3, b. 2, c. 7, d. 9, e. 6

SOLUTION: e

PROBLEM: Problem: the dimensions of a field are 20 m by 10 m. a pit 8 m long, 5 m wide and 2 m deep is dug in one corner of the field and the earth removed has been evenly spread over the remaining area of the field. what will be the rise in the height of field as a result of this operation ?
Options: ['a. 1 m', 'b. 2 m', 'c. 0.5 m', 'd. 0.75 m', 'e. 1.5 m']

SOLUTION:
c