Anyone know how to do this???

John traveled to the ferry office and back. The trip there took three hours and the trip back took four hours. What was John's average speed on the trip there if he averaged 45 km/h on the return trip?

Question

Anyone know how to do this???

John traveled to the ferry office and back. The trip there took three hours and the trip back took four hours. What was John's average speed on the trip there if he averaged 45 km/h on the return trip?

danjs · Answer

The distance to the office and back is the same distance

danjs · Answer

On the way back he averaged 45 km/hr

danjs · Answer

and it took 4 hours

danjs · Answer

The distance traveled, is 45 km/hr * 4 hrs = 180 km

danjs · Answer

So the distance is 180 km, and he took 3 hours to cover it. what would be the speed?

danjs · Answer

180 km / 3hr   = 60 km/hr  average speed to the office