Detailed Instructions: 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: rahul and sham together can complete a task in 35 days, but rahul alone can complete same work in 60 days. calculate in how many days sham can complete this work ?
Options: a. 84 days, b. 82 days, c. 76 days, d. 68 days, e. 60 days
Solution:
a