Question 1076953
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How many ways can three indistinguishable dots be arranged in five different boxes?

Ex: [*][*][*][ ][ ]

Swapping one dot with another will make no difference, as all the dots are indistinguishable.
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1.  There are 5 ways to put 3 dots into ONE of 5 boxes.


2.  There are 5*4 = 20 ways to put 2 dots in one of 5 boxes and 1 dot to one of 4 remaining boxes.


3.  There are {{{(5*4*3)/(1*2*3)}}} = 10 ways to put 3 dots into 5 boxes keeping no more than 1 dot in each box.


4. In all, it gives 5 + 20 + 10 = 35 for the number under the question.
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