Letters
Probability
Level
3
From my way to school from house, there are 5 post boxes. My mother gave me 13 (distinct) letters to post. If I can post each letter in any post box I want, in how many ways can I post the letters?
The answer is 1220703125.
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We put letter in the box so, the hand is up and the post box is down. In the similar way 13 is up and 5 is down.
= 5 raise to 13
= 5^13
=1220703125