Question

There are four parcels and five post-offices. In how many different ways can the parcels be sent by post?

Answer 1

$\Rightarrow$$4$ parcels

$\Rightarrow$$5$ post offices

$\Rightarrow$Each parcel has $5$ choices

$\therefore$ Total number of ways $=5\times 5\times 5\times 5=5^4=625$