Question

bunica mea pregateste 20 l de sirop de fructe de care-l imbutelizeaza astfel:jumatate din cantitate il pune in sticla de un sfertde litru,jumatarte de rest in sticle de o jumatate de litru,iar restul in sticle de 1 l.cate sticle au fost necesare?

Answer 1

20:2=10 l (jumatate)
10l=10000ml

10000ml: 250ml=40 sticle de un sfert 

20-10=10l (rest)
10:2=5 l (rest)
5l=5000ml

5000ml:500ml=10 sticle de 500ml

5000+10000=15000 ml (s-au pus în total)
20l=20000 ml ( cati ml au 20l )
20000-15000=5000ml (au ramas)

5000ml :1000ml=5 sticle (de 1l)
5+10+40=55 sticle