A horizontal pipe with 300 mm dia. And length 300 m leaves a reservoir of surface elevation 60 m at elevation 54 m.

A horizontal pipe with 300 mm dia. And length 300 m leaves a reservoir of surface elevation 60 m at elevation 54 m. This pipe connects (abrupt contraction) to a 150 mm diameter pipe of length 300 m running to elevation 39 m, where it enters a reservoir of surface elevation 39 m. Assuming friction factor of 0.02, calculate the flowrate through the line.