It is not asking to determine laminar or turbulent, the question is looking to determine if the efficiency is enough to agitate

Problem 1 A tank is being considered to mix a chocolate solution that has a 8.0 kW motor. This baffled tank is 1.25 m in diameter and 1.25 m high with a HE-3 impeller that is 0.36 m from the bottom of the tank. In order to sufficiently mix the chocolate solution, an agitation speed of 810 rpm will be needed. The motor efficiency is 70%. Is the motor adequate to mix the chocolate solution