Answer:
a) Average age of girls is also 151.
b)
Step-by-step explanation:
From the question we are told that:
Average height of the boys at age
Average height of the boys at age
a)
Since
The average height of all the children was 151 cm.
This implies that The average height of all children is 151
Therefore
Average age of girls is also 151.
b)
Assuming all factors being equal
Height of 10 year old boy
Therefore my Guess is