Question

If n(A) 72,n(B)43,n(AuB) 100 then find n(AnB)​

Answer 1

Answer:

please mark me as brillianist

Answer 2

Answer:

Just take pencil and paper, draw your two sets A and B (making sure they intersect) and write down what you know about them into that drawing!

You’ll see that e.g. the “71” is better written as the sum of two parts, so your drawing will have those two partial cardinalities instead of 71.

The rest of the story should then be peanuts!

Step-by-step explanation: