Bubba invited Beavis and Butthead to his house for a barbeque. Since Bubba's barbeque is only capable of handling two hamburgers at once, he wonders how he can cook three hamburgers at once, he wonders how he can cook three hamburgers in the shortest amount of time. It takes five minutes fro each side of a burger to cook. Therefore, in ten minutes two will be cooked, and another ten minutes will be needed to cook the third burger. Butthead says all three can be cooked i just 15 minutes. How?

Salamo 3alaikom,

The solution is easy,

First five minutes: cook the first side of piece a and b
Second five minutes: cook the other side of piece a and put on piece c and cook one side. Now you have 1 totally cooked and 2 with one side only cooked.

Third five minutes, cook the other side of piece b and c.

Salam.

:)