Question 903890
50*h+25*q+10*d+5*n=7500
h+q+d+n=360
h=q
d=n
50*q+25*q+10*d+5*d=7500
q+q+d+d=360

75*q+15*d=7500
2q+2d=360
q+d=180
q=180-d
5*q+1*d=500
5*(180-d)+1*d=500
900-5d+d=500
400=4d
d=100
n=100
q=80
h=80