Q. 115.0( 1 Vote )

In how many ways

Answer :

Given: We have 4 letters and 5 letter boxes


To Find: Number of ways of posting letters.


One letter can be posted in any of 5 letter boxes.


We have to assume that all the letters are different.


So for first letter i.e. , we have 5 ways


Similarly for,





Total number of ways = 5 × 5 × 5 × 5 = 625


In 625 ways 4 letters can be posted in 5 letter boxes.


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