Three friends went to a hotel.

The bill was $75

Each one contributed $25

The waiter took the bill to the
Cashier.

The cashier was happy & decided

To give them a discount of $5 & asked the waiter to return
them $5.

Now the waiter was confused.

How to distribute $5 among 3 persons?

He kept$2 in his pocket &
Gave one dollar to each one of the 3 persons.

So initially each one had contributed
$25. Now as they are given 1 rupee back, their contribution reduces
to $24.

They all contributed $24 –

That is 24×3=72 & 2 dollar are in the