Town P and Town Q are 80 km apart. A train travels from P to Q at an average speed of 120 km/h, waits, and travels from Q back t
o P at an average speed of 110 km/h. If the average speed of the train for the whole journey is 105 km/h, how long did it wait at Q? Give your answer in minutes and seconds.
I believe it is 16.75 because 0.35 + 16.4 is 16.75 why is it addition decimals? Because it says How many milliliters does the mixture contain. It is talking about both combined, I hope this helps you if not sorry this was rushed! I am also 3rd Grade this Year! :D