In how many ways can 6 identical candies be distributed among 3 children, where each child can receive any number of candies?
28
15
9
6
Since the candies are identical, the distribution can be viewed as placing dividers among them. We need 2 dividers to separate the candies into 3 groups (for the children). The number of ways to arrange these dividers and candies is given by choosing the positions for the dividers among the 6+2 = 8 total positions (6 candies and 2 dividers). This can be calculated as
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