For a Boy its eaiser to pick up 40 - 50 kg girl. But For the same Boy its quiet difficult to pick up a 14.2kg Gas cylinder Moral of the story: Dedication and interest matters !! :) coftbelicks 1) 50 KG DISTRUBUTED ON THE SURFACE OFTORAX, ABDOMEN AND SHOULDERS. 2) GIRL'S CENTER OF MASS ABOVE