Originally Posted by **fizsle**

Paul & john leave city A for City B at the same time. After reaching City B, both return to city A immediately. Paul travels from A to B @ 56kmph and returns @ 64kmph. John travels @ 60kmph both ways. Who gets back to A first?

(i) Paul

(ii) John

(iii) Both Arrive at the same time

(iv) Cannot be determined

Now my prof says JOHN arrives first as the average speed of Paul(the harmonic mean) will be less than the arithmetic mean(60kmph)....

My question is if the distance is 60 kms between the cities it will take them both the same time.... Am i right or am i incorrect in assuming the distance as 60kmph?