A postman has to distribute 10 identical postcards to 5 mailboxes. By how many ways can he do this ?

Answer Submission Is Not Available

Form is valid through June 2016


Dear  visitors and friends of the site. Thank you for your solutions. Sadly, this time no correct answers have been submitted.

Here is the solution:

We have a line of objects ( 10 postcards and 4 barriers that separate the mailboxes). Thus we need to count the number of possibilities to find spaces for 4  barriers, in other words - to choose 4 objects among 14 ( the order is not important).

Hence the solution is the number of combinations 14C4.


Thank you again and have a great summer.

The next problem appears in September.