Question 899816
n+q=104,
0.05*n+0.25*q=16
n=104-q
0.05*(104-q)+0.25*q=16
5.2-0.05q+0.25*q=16
0.2*q=10.8
q=54.0
n=104-q
n=50 at 0.05 and  q=54 at 0.25
check
50+54=104
0.05*n+0.25*q=16
0.05*50+0.25*54=16
2.5+13.5=16
16.0=16
ok