Question

The number of way in which we can post 5 letters in 4 letters boxes is

• A. 50
• B. $4^5$
• C. ${10}^5$
• D. none of these

Answer 1

Answer: (B)

$4^5$

We have,

Letter $=5$

Letter box$=4$

Then, ways

$=4\times 4\times 4\times 4\times 4$

$=4^5$

Hence, this is the answer.