7 × 6 × 5 × 4 × 3 × 2 × 14 × 3 × 2 × 1 = 7 × 6 × 5 That was neat The 4 × 3 × 2 × 1 "cancelled out", leaving only 7 × 6 × 5 And 7 × 6 × 5 = 210 So there are 210 different ways that 7 people could come 1 st, 2 nd and 3 rd Done!
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