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venn diagram

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by camitava » Wed Dec 12, 2007 1:58 am
Of the employees in Company X, 95% have desktop computer, 75% have both Desktop and Laptop, and 60% have both Desktop and PDA. At least what percent of employees in the company have all of three kinds of devices?

a) 33%
b) 35%
c) 37%
d) 40%
e) 60%
Refer the following diagram -

Now D n L = 75 and D n P = 60
So D n L n P = 75 + 60 - 95 = 40.
Because L should be 95 always and D n L and D n P is overlapping the value of D n L n P. Got my approach? So IMO D. What's the OA?
Image
Correct me If I am wrong


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by camitava » Fri Dec 14, 2007 12:49 am
Yop, shahab03! In your words, it is so ...
Correct me If I am wrong


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