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DS - Overlapping Sets

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by nakul_anand » Sun Oct 25, 2009 9:52 am
How many people are directors of both Company K and Company R?

(1) There were 17 directors present at a joint meeting of the directors of Company K and Company R, and no directors were absent.

(2) Company K has 12 directors and Company R has 8 directors.[/spoiler]
Last edited by nakul_anand on Sun Oct 25, 2009 10:08 am, edited 1 time in total.
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Source: — Data Sufficiency |

by xcusemeplz2009 » Sun Oct 25, 2009 9:58 am
IMO C

wats the oa??
It does not matter how many times you get knocked down , but how many times you get up
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by NikolayZ » Sun Oct 25, 2009 12:44 pm
Hey !

Obviously stmt 1 and 2 alone are not sufficient.
Let's try 1+2 :
Let x be the number of directors of both K and R.
If K has 12 directors and R has 8 directors. Then the number of directors who are present at the meeting will be:
12+8-X=17, X=3.
I believe it is C.
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Answer is C

by nakul_anand » Sun Oct 25, 2009 1:16 pm
Guys,

Thanks for the reply. The answer is C. The question sounded tricky to me so I thought of sharing this with people.

Regards!
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by boymeetsworld » Thu Sep 29, 2011 5:30 pm
This question is quite tricky. Anyone else would have tried a two way data table to tackle this? Can you explain your approach?
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