The optimal weight for an average 14 yr old boy (optimal height 5'5") is 110 lbs.
depends on your height
The average 5'10 boy weighs anywhere from 150lbs - 180lbs.
for a girl not over 100 and a boy like not over 130
Yes
no that is healthy
no that's a bit over weight by mabey 10 pounds and that's not bad I am 50 punds over weight!
an average nine year old boy's weight is about 75 to 90 pounds
No.
a good weight for a 9 year old is 35
10.5kg
Depending on the stature and bone mass the weight of a 5 foot boy should be around 120-150 pounds. If the weight is less it could simply be because there is less muscle on the particular boy, or over 150 could mean there is more muscle.
Weight is worked out on height not age.