Palamig Vendor

Thanks to the wonders of science, we now have our litro pack juice. It costs about Php9-10.00 which is relatively cheap. With only Php10.00 we can enjoy a liter of thirst-quenching goodness. But how bout selling this? When I was in a mall in CDO, I bought this juice which costs Php8.00 per glass, and its just the regular litro pack juice.

Do the math:
1 liro pack = Php10.00
1 liter = 5 glasses
1 glass of juice = Php8.00

For every glass you sell you earn
5 glasses x Php8.00 = Php40.00

And your capital is only Php10.00. Subtract what you earn with what you spend. Your revenue Php30.00. Thats gaining three times of what you spend. And thats just by selling a pretemplado litro pack.