At the age of 17 years, the weight of boys should be up to 62.7 kg and that of girls up to 54 kg. After this, at the age of 18, the boy should be up to 65 kg and the girl should be up to 54 kg. Weight of 19 to 29 years of age: Boy's weight should be 83.4 kg, girl's weight should be up to 73.4 kg.