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In how many ways can 6 different books be distributed among 3 students such that each student receives at least one book?
- A.540
- B.360
- C.480
- D.520
Show correct answer & step-by-step solution
Correct answer: A — 540
Solution
This is equivalent to finding the number of onto functions from a set of 6 elements to a set of 3 elements, given by .
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