Hi guys today i will show to you how a river can blow your mind.

After passing through a point A, a river,

It is divided into two branches. To the right branch,

Following the direction of flow is diverted a third of the

flow, and the rest is diverted by the branch of the left. River

below, this branch overlays, also divided into two, one of

which it absorbs three quarters of the flow

He arrives, and the other, the rest. What proporci'o of the flow

through point A finally comes through point B?

If you whant to resolve the problem you have to cinck clearly

Firts you have to res of A             -  then you only have to do this

Marcel rovira