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y - liczba słoików większych
x+y=40
2,5y-16=1,5x
x=40-y
2,5y-16=1,5(40-y)
2,5y-16=60-1,5y
2,5y+1,5y=60+16
4y=76
y=19
x=40-19=21
spr
19*2,5l=47,5l
21*1,5l=31,5l
47l-31,5l=16l