[{"question":"Ako vypo\u010d\u00edtame d\u013a\u017eku dr\u00e1hy?","answers":["v = s * t","s = v \/ t","s = v * t","s = t \/ v"],"correct":"s = v * t","order":"1"},{"question":"Ako vypo\u010d\u00edtame r\u00fdchlos\u0165?","answers":["v = s * t","v = s \/ t","v = t \/ s","s = v \/ t"],"correct":"v = s \/ t","order":"2"},{"question":"Ako vypo\u010d\u00edtame \u010das?","answers":["v = s * t","t = v \/ s","t = s \/ v","t = v * s"],"correct":"t = v \/ s","order":"3"},{"question":"Vypo\u010d\u00edtaj priemern\u00fa r\u00fdchlos\u0165 vlaku, ak za 2, 5 hodiny pre\u0161iel 170 km.","answers":["68 km\/h","86 km\/h","147 km\/h","70 km\/h"],"correct":"68 km\/h","order":"4"},{"question":"Jedno auto pre\u0161lo 64 km za 0,8 hodiny, druh\u00e9 81 km za 0,9 hod. Ktor\u00e9 malo v\u00e4\u010d\u0161iu r\u00fdchlos\u0165 a o ko\u013eko?","answers":["prv\u00e9 o 10 km\/h","druh\u00e9 o 10 km\/h","prv\u00e9 o 21,7 km\/h","druh\u00e9 o 21,7 km\/h"],"correct":"druh\u00e9 o 10 km\/h","order":"5"},{"question":"Motocyklista pre\u0161iel vzdialenos\u0165 150km za 150 min\u00fat. Ak\u00fa mal priemern\u00fa r\u00fdchlos\u0165?","answers":["22,5 km\/h","60 km\/h","15 km\/h","30 km\/h"],"correct":"60 km\/h","order":"6"},{"question":"Autobus vyrazil z mesta A do mesta B o 8:00 r\u00fdchlos\u0165ou 72 km\/h. O 8:30 vyrazilo za n\u00edm auto r\u00fdchlos\u0165ou 90 km\/h. O ko\u013ekej a v akej vzdialenosti od A dohon\u00ed auto autobus?","answers":["o 10:00 a 180 km od mesta A","o 10:00 a 144 km od mesta A","o 10:30 a 144 km od mesta A","o 10:30 a 180 km od mesta A"],"correct":"o 10:30 a 180 km od mesta A","order":"7"},{"question":"Z mesta A do mesta B je 320 km. Z A vyrazilo auto r\u00fdchlos\u0165ou 120 km\/h. S\u00fa\u010dasne vyrazilo oproti nemu auto r\u00fdchlos\u0165ou 80 km\/h. Kedy a v akej vzdialenosti od A sa stretn\u00fa?","answers":["o 9:36 a 192 km od mesta A","o 10:12 a 192 km od mesta A","o 9:06 a 180 km od mesta A","o 9:36 a 128 km od mesta A"],"correct":"o 9:36 a 192 km od mesta A","order":"8"},{"question":"Z kempu do mesta vyrazil o 8:00 cyklista r\u00fdchlos\u0165ou 24 km\/h. O 1,5 hodiny vyrazil motocyklista r\u00fdchlos\u0165ou 60 km\/h z mesta do kempu. Kedy a v akej vzdialenosti od kempu sa stretn\u00fa?Z kempu do mesta je 120 km.","answers":["o 9:00 a 24 km od kempu","o 10:30 a 24 km od kempu","o 10:30 a 60 km od mesta","o 9:00 a 60 km od kempu"],"correct":"o 10:30 a 60 km od mesta","order":"9"},{"question":"Jedna skupina turistov vyrazila z chaty o 8:30 r\u00fdchlos\u0165ou 4 km\/h. Druh\u00e1 za nimi 9:00 a dobehla prv\u00fa o 10:00. Ak\u00e1 bola r\u00fdchlos\u0165 druhej skupiny?","answers":["6 km\/h","5 km\/h","8 km\/h","9 km\/h"],"correct":"6 km\/h","order":"10"}]