II ____/____/____/____/
III____/____/____/____/....../ ce s-ar muta de pe raftul II= segmentul punctat
I ____/____/
IV____/____/____/____/____/____/____/____/ total=1800
Nr parti egale=18
18p=1800
1p=1800:18=100
I=2x100=200
II=4x100=400
III=4x100=400
IV=8x100=800