Dobrý večer, potreboval by som vysvetliť domácu úlohu ktorú sa snažím vypracovať správne, no nejde mi to.
Uloha: Janko vyrazil ráno o 7.00 na bicykli do školy. O 10 minút za ním vyrazila sestra na mopede a o 7.30 ho dobehla. Svoju rýchlosť prispôsobila bratovej a do školy prišli spolu o 7.35. Ako ďaleko je škola od ich bydliska, ak posledných 5 minút išli rýchlosťou 24 km/h? Akou rýchlosťou išla sestra pred tým?
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