Weight is calculated by height not age.
she should way 110-119
an 15 year old should way about 50-70kg's... i think!
they should way 100 lb.
120-140
90 pounds
a 12 year old should way beteew 100 to 120 poounds
you should way between 80-105 range
do you mean weight? A ten year old girl should weigh in between 80-94 pounds.
she/he should way between 5 and 6 1/2 stone
A 12 year old should way about 100 to 112. around that weight is the normal weight for a 12 year old.
She should way about 90-100 pounds.
For a healthy diet, you should weight around 115 lbs if you are a 15 year old female with the height of 5'6.