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: after giving a discount of rs. 45 the shopkeeper gets a loss of 10 %, if the cost price is rs. 180. find the markup % ?
Options: a. 0.21, b. 0.2, c. 0.17, d. 0.21, e. 0.15

SOLUTION: e

PROBLEM: Problem: ramesh purchased a refrigerator for rs. 12500 after getting a discount of 20 % on the labelled price. he spent rs. 125 on transport and rs. 250 on installation. at what price should it be sold so that the profit earned would be 18 % if no discount was offered ?
Options: a. 17608, b. 17606, c. 17604, d. 17600, e. 18880

SOLUTION: e

PROBLEM: Problem: from mumbai railway station, two trains a and b start simultaneously from stations 400 miles apart, and travel the same route toward each other on adjacent parallel tracks. if train a and train b travel at a constant rate of 40 miles per hour and 40 miles per hour, respectively, how many miles will train a have traveled when the trains pass each other, to the nearest mile ?
Options: a. 112, b. 133, c. 150, d. 167, e. 180

SOLUTION:
e