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cbrf3
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Logic Problem!! 05 Jul 2004, 13:50
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Please explain!!

At a party 30% of people have only drinks and snacks, 20% have only food and 70% have snacks. If nobody has all three and everybody has something, then how many have food?



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boksana
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Logic Problem!! 05 Jul 2004, 15:32
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Are you sure that you didn't miss number of only drinks?
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cbrf3
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Logic Problem!! 05 Jul 2004, 16:36
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Yes this is the only data given and the answer states a certain % value, which is the maximum possible value!!
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Paul
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Logic Problem!! 05 Jul 2004, 20:09
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I got 40%
D = drink
S = snack
F = food

D + S + F - DS - DF - FS - 0 = 100
D + 70 + F - 30 - DF - FS = 100
D + F - DF - FS = 60
DF + FS = D + F - 60

F = 20 + DF + SF
F = 20 + D + F - 60
F - F - 20 + 60 = D
D = 40

Draw a Venn diagram and you'll see what I meant by all these variables
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stolyar
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Logic Problem!! 06 Jul 2004, 02:12
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you need to find F, not D.
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Vithal
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Logic Problem!! 06 Jul 2004, 08:26
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Even I feel that there is some info. missing from the Q.

I have quit attempting it again (already spent my precious 10min!)
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sid_477
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Logic Problem!! 06 Jul 2004, 09:53
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ok i am confused! Consider there are 100 people in the party
30 of them have drinks + snacks
20 have ONLY food
70 have snacks
none have all 3
then %age of people having food is already given in the question i.e. 20%
what am i missing!!



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Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
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