Stim ca 1l apa pura ocupa 1 dm cub=1000 cm cubi
Folosim astfel regula de trei simpla:
100cm cubi apa pura ....... 109cm cubi gheata
1000cm cubi apa pura ....... x cm cubi gheata
Scriem rapoartele:
100/1000 = 109/x
x=1000*109/100= 1090cm cubi gheata
Raspuns: 1090 cm cubi
Sper ca intelegi rezolvarea, daca e ceva neclar, spune-mi :)