Assuming the two streams are in parallel flow

Question

In a certain double pipe heat exchanger hot water flows at a rate of 50,000 kg/h and gets cooled from 95⁰ to 65⁰C. At the same time 50,000 kg/h of cooling water at 30⁰C enters the heat exchanger. The flow conditions are such that the overall heat transfer coefficient remains constant at 2270 W/m²K. Calculate the heat transfer area required, assuming the two streams are in parallel flow, and for both the streams C_p=4.2 kJ/kg K.