How Can The Shop-Keeper Still Make Profit?

How Can The Shop-Keeper Still Make Profit?

There is a shop that reads:

Buy 1 for $10.00

10 for $20.00

100 for $30.00

I needed 740 and still only paid $30.00.

How can the shop-keeper still make profit?

 

 

 

 

Answer:

The shop actually sells digits.

Per digit costs $ 10.

So as 740 also needs 3 digits like 100, the selling price remains the same.

 

pzlguru@dmin