Răspuns:
Volumul = 40 x 30 x 20 = 24000
1.) 24000 = h1 x 50 x 20
h1 = 24000 : 50 : 20 = 24
2.) 24000 = h2 x 50 x 30
h2 = 24000: 50 : 30 = 16