Answer:
Let's break down the information given:
1. 11 students watched TV only on Monday.
2. 7 students watched TV only on Tuesday.
3. 6 students watched TV only on Wednesday.
4. 7 students watched TV on all three days.
5. We need to find the total number of students in the class.
We can use the principle of the Inclusion-Exclusion Principle to find the total number of students in the class.
Total students who watched TV on at least one day = Students who watched TV on Monday + Students who watched TV on Tuesday + Students who watched TV on Wednesday - Students who watched TV on all three days
Total students = 11 + 7 + 6 - 7
Total students = 17
So, there are 17 students who watched TV on at least one day. Now, we need to add the students who didn't watch TV at all to find the total number of students in the class.
Total number of students in the class = Total students who watched TV on at least one day + Students who didn't watch TV at all
We know that every student watched at least one of the days, so the number of students who didn't watch TV at all is 0.
Total number of students in the class = 17 + 0
Total number of students in the class = 17
So, there are 17 students in the class. None of the answer choices (a, b, c, d) match this result, so there might be a mistake in the provided information or question. Please double-check the information given in the question.
Explanation: