Expert: Paul Klarreich - 10/20/2008

Question
In a large locality, 60 percentage of families have  a car, 50 percentage have an air condition and 30 percentage  have both . find the percentage  of families that have
a.    at least one of the items
b.    neither of the two
c.    have only air conditioner.  

Answer
Questioner:   akanksha
Category:  Advanced Math
Private:  No
 
Subject:  probability
Question:  In a large locality, 60 percentage of families have  a car, 50 percentage have an air condition and 30 percentage  have both . find the percentage  of families that have
a.    at least one of the items
b.    neither of the two
c.    have only air conditioner.
..................................
Hi, Akansha,

Look up problems with the subject line VENN DIAGRAMS.  (Click on Browse Past Answers)

Note the process, especially the line that says:

WORK FROM THE INSIDE OUT.

Ask yourself:

If 60 have a car, and 30 have both, what conclusion can you draw?

That should do it.