proporcjami:
1)
7 panów-100%
2 panie-x
x=200/7=28%
panowie-100%
panie-28%
6pań-28%
x-100%
x=600/28=21 (panów)
(6+21)+(7+2)=27+9= 36 osób
2)
50 ml soku + 200 ml wody = 250 ml napoju
1,5l=1500ml
1500ml:250ml=6
6*50ml = 300ml (soku)
6*200 ml= 1200 ml = 1,2 l (wody)