A small stream is of rectangular cross section. At a certain section it divides itself, encloses an island and then re-joins to form a single channel again. The properties of the two paths past the islandare as follows: At a short distance downstream of the confluence the discharge is found to be 160 m³/s and depth of flow of 4 m. Find the discharge in each channel and the depth of flow at the point of division. Neglect the energy loss at the division and at the confluence.

A small stream is of rectangular cross section. At a certain section it divides itself, encloses an island and then re-joins to form a single channel again. The properties of the two paths past the islandare as follows: At a short distance downstream of the confluence the discharge is found to be 160 m³/s and depth of flow of 4 m. Find the discharge in each channel and the depth of flow at the point of division. Neglect the energy loss at the division and at the confluence.