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Odp: Mozna kupić 5,5 kg winoron
odp. można kupić 5,5kg winogron
x kg=15 2/5
x=(1*15 2/5)÷2 4/5
x=77/5÷14/5=77/5*5/14=77/14=5 1/2
czyli 5 i 1/2kg