Hi, can someone please help me with the following quesiton...

A body, initially at room temperature 20 degrees celsius, is heated so that its temperature would rise by '5 degrees celsius/min' if no cooling took place. Cooling does occur in accordance with Newton's Law of Cooling and the maximum temperature of the body could attain is 120 degrees celsius. How long would it take to reach the temperature of 100 degrees celsius.

Thanks