Posted by anonymous on Monday, June 24, 2013 at 12:56pm.
You have seven balls labelled 1,2,…,7 and seven unlabelled, indistinguishable boxes. How many different ways can the balls be placed into the boxes?
Details and assumptions
Since the boxes are indistinguishable, putting all 7 balls into one box is the same as putting all 7 balls into a different box.

math  Aishwarya, Tuesday, June 25, 2013 at 8:30am
877
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