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: rajani has to read a book of 445 pages. she has already read the first 157 pages of the book and if she reads 24 pages of the book everyday then how long will she take now to complete the book ?
Options: a. 25 days, b. 20 days, c. 46 days, d. 21 days, e. none of these

SOLUTION: e

PROBLEM: Problem: a shopkeeper sold 30 articles at the cost price of 35 articles. then find the profit % or lost %
Options: a. 12 %, b. 15 %, c. 16.67 %, d. 18 %, e. 22 %

SOLUTION: c

PROBLEM: Problem: two cars a and b start from boston and new york respectively simultaneously and travel towards each other at constant speeds along the same route. after meeting at a point between boston and new york the two cars a and b proceed to their respective destinations of new york and boston. car a reaches new york 80 minutes after the two cars have met and car b reaches boston 90 minutes after they have met. how long did car a take to cover the distance between boston and new york ?
Options: a. 1 hour, b. 1 hour 10 minutes, c. 2 hours 30 minutes, d. 1 hour 40 minutes, e. 2 hours 20 minutes

SOLUTION:
e