GMAT Practice Question Set #46 (Question 136-138)

Problem Solving Question #138: Dating Among A Set of Medical Interns  
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A group of medical interns at Bohemus Medical School want to go on dates. There are 5
girls and 5 guys. Assuming girls go on dates with guys, how many possible ways can these
10 medical interns date each other?

(A)

10

(B)

25

(C)

60

(D)

90

(E)

120

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