A train travelled at 100 $$km/h$$ for the first 200 $$km$$ of the journey.<br>For the remaining 180 $$km$$ of the journey, it reduced its speed to 60 $$km/h$$ for safety reasons as there were many bends along the tracks. <hr> Find the total time taken for the entire journey.<br> <input min="0" type="number" id ="imp6pg159q9a" class="lineinput" placeholder="?" /> $$h$$