How many ways can 5 letters be posted in 10 letterboxes ?
the answer in 10^5.
But i am really confused with this.
Can anybody help me solving this.
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I got it !
letter one can go in any of the 10 boxes, so 10 ways.
And same goes for remaining 4 letters. so 10.10.10.10.10 = 10 ^5.
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