Jeden kwadrans -jaka to część doby? Jedna sekunda -jaka to część kwadransa?
doba = 24 h
24h=1440 min 15min
kwadrans=15m ---------- Ułamek
1440min
kwadrans=15min=900sek
1sek
---------- ułamek
900sek
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doba = 24 h
24h=1440 min 15min
kwadrans=15m ---------- Ułamek
1440min
kwadrans=15min=900sek
1sek
---------- ułamek
900sek