Question

Out of 30 students in a dormitory, 15 take an art course, 8 take a
biology course and 6 take a chemistry course. It is known that 3
students take all the three courses. Show that 7 or more students take
none of the courses.

Answer 1

Answer:

Here's your answer in the photo okayyyyy

here's your answer in the photo okayyyyy

here's your answer in the photo okayyyyy

Answer 2

Step-by-step explanation:

this is the answer....hope ur doubt was solved!!

thanku