Question

Out of 100 Cups of coffee 54 are too hot
hot, 32 are too cold , 28 are too bitter
17 are too hot & too bitter,
9 are too cold & too bitter. Find
Cups are just right ?​

Answer 1

Answer:

n(a)=54,n(b)=32,n(c)=28,n(anb)=9

Step-by-step explanation:

use the formula n(aUbUc)=n(a)+n(B)+n(c)-n(anb)

n(aUbUc)=54+32+28-9

=105

answer=no. of cups are 105.