Math problems from the *free* official practice tests and
problems from mba.com
gupviv23
Forum Guests
 
Posts: 9
Joined: Fri Jan 27, 2012 10:40 pm
 

* Veinn diagram

by gupviv23 Sun Apr 08, 2012 7:07 am

Hi guyz

Please help me in this question-
A garden has only red, green and yellow flowers, 57% of the flowers have red colour, 35% have green colour and 50% have yellow colour.If no flower has all three colors, what percentage of the flowers has only one colour?

A)32
B)50
C)55
D)58
E)82

OA- D

Please xplain, how?
smohit04
Course Students
 
Posts: 28
Joined: Fri Oct 15, 2010 5:58 pm
 

Re: Veinn diagram

by smohit04 Tue Apr 10, 2012 1:04 am

Let the total no. of flowers is 100 and the no. of flowers having 2 colors is X (red+green OR green+yellow OR red+yellow)

There is no flower that has all 3 colors.

100 = 57+35+50 - X

X= 42.

So no. of flowers having only one color = 100-42
= 58
RonPurewal
Students
 
Posts: 19744
Joined: Tue Aug 14, 2007 8:23 am
 

Re: Veinn diagram

by RonPurewal Sun Apr 15, 2012 2:39 am

hi,

this folder is only for problems from the OFFICIAL GMAT PREP SOFTWARE.

is this problem from that software?
* if so, please post a screenshot (either directly or by uploading it to an image hosting site such as postimage.org).
* if not, then, unfortunately, we will have to delete this thread shortly.

thanks.