Send the following on WhatsApp
Continue to ChatQuestion 2 - Examples - Chapter 1 Class 11 Sets https://teachoo.com//2073/573/Example-24---In-a-school--20-teachers-teach-maths-or-physics/category/Examples/
Question 2 - Examples - Chapter 1 Class 11 Sets https://teachoo.com//2073/573/Example-24---In-a-school--20-teachers-teach-maths-or-physics/category/Examples/