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Source: — Data Sufficiency |
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by rs2010 » Wed Mar 25, 2009 6:52 pm
Lets start with A

Veg- 2:3 ( s:ns)
Non Veg- 4:3 ( s:ns)

If this is actual condition that we have 3 nv ns who can eat hamburgers out of total 12(2+3+4+3). Now we have 15 hamburger so lets multiply this by 5
So total guest=12*5=60- suff

B- 30% veg non students that means 20 % veg students because half of the guests were veg.

15 hamburgers -15 non veg non student- no info about non veg student- insuff

Ans: A
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by ketkoag » Thu Mar 26, 2009 2:20 am
hemant why u've added all 4 numbers.....
please explain why 12 and how??
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by rs2010 » Thu Mar 26, 2009 3:49 am
Let assume that ratio given is the actual number so in that case ppl who would be able to eat hamburger would be

nsnv out of (nsnv+snv+snv+sv)

so 3 of 12..now this will account for 3 hamburger we need 15 so multiply by 5 to keep the same ratio

3*5 of 12*5
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