Data Sufficiency

Guests at a recent party ate a total of fifteen hamburgers. Each guest who was neither a student nor a vegetarian ate exactly one hamburger. No hamburger was eaten by any guest who was a student, a vegetarian, or both. If half of the guests were vegetarians, how many guests attended the party?

(1) The vegetarians attended the party at a rate of 2 students to every 3 non-students, half the rate for non-vegetarians.

(2) 30% of the guests were vegetarian non-students.


most interesting ... wats the time taken to colve this ???

vishu

Vishu,
Refer to:

https://www.beatthegmat.com/mgmat-4-t11194.html

This one was a toughie (IMO) Understading this line "half the rate for non-vegetarians" was the key to the soln.

Regards,
Cramya