Marinada '21

[lang=hr] Svi znaju da tri obična tuljana i dva siva tuljana teže koliko i pet običnih tuljana, a sivi tuljan teži koliko i tri pjegasta tuljana. Koliko pjegastih tuljana teži koliko i jedan obični tuljan? (Pretpostavljamo da svi tuljani iste vrste imaju jednaku masu.) [/lang] [lang=en] Everybody knows that three harbour seals and two grey seals weigh as much as five harbour seals, and that the grey seal weighs as much as three spotted seals. How many spotted seals have the same weight as one harbour seal? (All seals of the same species weigh the same.) [/lang]