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: the l. c. m of two numbers is 495 and their h. c. f is 5. if the sum of the numbers is 100, then their difference is
Options: a. 19, b. 10, c. 28, d. 27, e. 29

SOLUTION: b

PROBLEM: Problem: if a man lost 10 % by selling oranges at the rate of 12 a rupee at how many a rupee must he sell them to gain 44 % ?
Options: a. 6.5, b. 7.5, c. 7, d. 8, e. 2

SOLUTION: b

PROBLEM: Problem: if the price of 357 apples is rs. 1517.25, what will be the approximate price of 49 dozens of such apples ?
Options: a. rs. 2500, b. rs. 2300, c. rs. 2200, d. rs. 1400, e. rs. 1600

SOLUTION:
a