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Mot o to xuat phat tu A qua B de den C.Cung luc do mot xe may cung xuat phat tu B den C. Sau 3 gio 48 phut thi o to duoi kip xe may tai C. Biet quang duong AB dai 102,6 km va van toc cua o to bang 5/3 van toc xe may. Tinh van toc o to
mot o to xuat phat tu a di qua b de di den c .Cung luc do mot xe may xuat phat tu b cung di den c .Sau 3 gio 48 phut thi o to duoi kip xe may tai c .Biet quang duong ab dai 102,6km va van toc cua o to bang 5/3 van toc xe may .Tinh van toc cua o to
1,luc 7h mot nguoi di tu a voi van toc 40km/h,den 7h30 mot nguoi khac di tu a den b voi van toc 55km/h.hoi den may gio thi 2 nguoi gap nhau?
2,luc 7h mot nguoi di xe may tu a den b voi van toc 40km/h,cung luc do mot nguoi khac di o to tu b ve a voi van toc 45km/gio.hoi xe may gap o to luc may h biet quang duong ab dai 127,5km?
3,mot o to xuat phat tu a di qua b de di den c ,cung luc do mot xe may xuat phat tu b cung di den c.sau 2 gio 48 phut thi o to duoi kip xe may tai c,biet quang duong ab dai 102,6km va van toc cua o to bang 5/3 van toc cua xe may.tinh van toc cua o to?
4,quang duong ab dai 120km.luc 5h sang,mot o to di tu a den b mat 2h30phut.mot xe may cung di tu a den b voi van toc bang 2/5 van toc cua o to va xuat phat cung luc voi o to.hoi xe may den b sau o to bao lau?
mot o to va mot xe may cung xuat phat luc gio 30 phut de di tu A den B . van toc cua xe may bang 3/4 van toc cua o to ,. hoi xe may den B luc may gio , biet qung duong ABdai 120 km va o to den B luc 10 gio ?
mot o to va mot xe may cung xuat phat luc 7h 30' de di tu a den b . van toc cua xe may bang 3/4 van toc cua o to . hoi xe may den b luc may gio , biet quang duong ab dai 120 km va o to den b luc 10 gio
Mot o to xuat phat tu A den B roi den C voi van toc 46 km/ gio cung luc do mot nguoi di xe may xuat phat tu B den C voi van toc 35 km/gio.biet quang duong AB dai 33 km hoi sau may gio o to duoi kip xe may
mot o to va mot xe may cung xuat phat di tu a de den b .biet quang duong ab dai 150 km ,van toc cua o to la 50km/gio con van toc cua xe may la 40km / gio .hoi o to den b thi xe may cach b bao nhieu km?
Một o to va xe may cung xuat phat luc 7gio 30phut de di tu A den B. Van toc cua xe may bang 3/4 van toc cua o to. Hỏi xe may den B luc may gio ? Biet quang duong AB dai 120km va o to den B luc 10 gio.
mot xe may va mot o to cung xuat phat tu a den b . xe may di voi van toc 30km/gio . o to di voi van toc 40km/gio . hoi sau khi xuat phat bao lau de quang duong con lai cua xe may gap 3 lan quang duong con lai cua o to . biet quang duong ab dai 135km