If I drive at a speed of 20 km/hr for 6 hours, I would cover ____.
John covers a part of the journey at 20 km/hr and the remaining at 70 km/hr , taking total of 8 hours to cover the distance of 400 km. How many hours he has been driving at 20 km/hr?
Rahul covers a part of the journey at 20 km/hr and the remaining at 70 km/hr, taking total of 8 hours to cover the distance of 410 km. How many hours he has been driving at 20 km/hr?