Maths Set Theory and Relations Practical Problems on Union and Intersection of Two Sets Single Correct MCQ
Published on: August 14, 2026

In a school, there are 20 teachers who teach Mathematics or Physics. Of these, 12 teach Mathematics and 4 teachers teach both Mathematics and Physics. Then the number of teachers teaching only Physics are

A
12
B
16
C
8
D
4

Share this question

For Instagram sharing, use “Apps” on mobile or copy the link.

Text Solution

Verified by Experts
The correct answer is:
C

Let set of Mathematics teachers and set of Physics teachers.

Also, (only Mathematics teachers)

(only Physics teachers)

(only Physics teachers)

(only Physics teachers)

──────────────────────────────────────────────────────────────────────────────────────────

Prepare Smarter with CGP Edu

Get practice questions, solutions, and test series in one place.

Write a Review

Share your experience with this question and solution.

Commentary

Send your comment, doubt, correction, or feedback to admin.

Student Reviews

What students say about this solution

No reviews yet. Be the first to write a review.

Similar Questions

Explore conceptually related problems

CG
CGP Question Assistant Question Bank + AI Help
Hi! Type your question or upload one screenshot. First I will search related questions from CGP Edu Question Bank. If none match, type YES and I will solve it with AI.
Upload only one screenshot at a time. Flow: Question Bank first → If not matched, type YES for AI solution.