a fifteen year old should be able to do atleast 110 sit ups in two minutes.
as many as he/she can, or as many as you teach her/him
100
10
all five do it
How many sit ups should a 12 year old be able to do
Any where between 25-100.
A 12 year old should be able to do around 25 pushups in 30 seconds. This is a reasonable answer. Hope I helped you!
10-30
At least a year
No.
yer u both under 18