Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Problem: the average salary / head of all the workers in a workshop is rs. 1100, if the average salary / head of 9 technician is rs. 1300 and the average salary / head of the rest is rs. 880, the total no. of workers in the work - shop is ?
Options: a. 18, b. 20, c. 22, d. 17, e. 26
Student:
d