\(N=2A+2G=1620\left(nu\right)\)
\(\left\{{}\begin{matrix}T_1=A_2=250\left(nu\right)\\G_1=X_2=160\left(nu\right)\end{matrix}\right.\)
\(\Rightarrow\left\{{}\begin{matrix}A_1=T_2=A-A_2=200\left(nu\right)\\G_2=X_1=G-G_1=200\left(nu\right)\end{matrix}\right.\)