Permutations
Permutations and combinations · Mathematics
Study notes
Q: (a) In how many ways can 3 prizes go to 10 students (one each)? (b) 5-digit numbers from digits 1-7, no repetition? (a) P(10,3) = 10x9x8 = 720. (b) P(7,5) = 7x6x5x4x3 = 2520.
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Permutations and combinations · Mathematics
Q: (a) In how many ways can 3 prizes go to 10 students (one each)? (b) 5-digit numbers from digits 1-7, no repetition? (a) P(10,3) = 10x9x8 = 720. (b) P(7,5) = 7x6x5x4x3 = 2520.