When g is 4, h is 1/2 and j is 1/3. if g varies jointly with h and j, what is the value of g when h is 2 and j is 3?

GHJ
G=kHJ
where k is a constant of proportionality;
when G=4, H=1/2 and J=1/3
Finding value of k,
4=k*1/2*1/3
4=k
k=24
The equation then is;
G=24HJ
When H=2, J=3
G=24*3*2
G=144

The method to find the female dormitory is 2-d=800