venn diagram

[sujaysolanki]

From info

D = 95
D & L = 75 i.e L = 25
D & P = 60 i.e P = 30


Total = 95 - 55 = 40

[camitava]

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?

[camitava]

Yop, shahab03! In your words, it is so ...