SOLUTION: In a class of 33 students, 20 like rihanna, 10 like rick ross, 3 like neither.
(a) How many students like both?
(b) how many students like rihanna only?
(c)how many students lik
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-> SOLUTION: In a class of 33 students, 20 like rihanna, 10 like rick ross, 3 like neither.
(a) How many students like both?
(b) how many students like rihanna only?
(c)how many students lik
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Question 653454: In a class of 33 students, 20 like rihanna, 10 like rick ross, 3 like neither.
(a) How many students like both?
(b) how many students like rihanna only?
(c)how many students like rick ross only?
I have tried N(r u rr) = n(r) + n(rr) - (r n rr) Answer by solver91311(24713) (Show Source):
If 3 like neither, that leaves 30 that like one or the other, but since 20 like one of them and 10 like the other and 20 plus 10 is 30, that leaves no overlap. No one likes both. 20 like the full-of-herself girl only, and 10 like the fat arrogant guy only.
John
My calculator said it, I believe it, that settles it
