mot nguoi lam chung mot cong viec sau12 gio thi hoan thanh .neu nguoi thu nhat lam may mot minh 2/3 cong viec thi mat 10 gio.vay thu hai lam 1/3 cong viec con lai mat
ba nguoi cung lam xong 1 cong viec se hoan thanh cong viec do trong 2 gio 40 phut. neu lam rien 1 minh thi nguoi thu 1 phai mat 8 gio moi xong cong viec, nguoi thu 2 phai mat 12 gio moi cong cong viec. hoi nguoi thu 3 lam mot minh thi mat may gio moi xong cong viec
Hai nguoi lam chung mot cong viec sau 12 gio thi hoan thanh . Neu nguoi thu nhat lam mot minh 2/3 cong viec thi mat muoi gio. Vay nguoi thu hai lam 1/3 cong viec con lai mat .... gio
ba nguoi lam chung mot cong viec se hoan thanh cong viec do trong 2 gio 40 phut.neu lam rieng mot minh thi nguoi thu nhat phai mat 8 gio moi xong cong viec,nguoi thu hai phai mat 12 gio moi xong cong viecd.hoi neu nguoi thu ba lam mot minh thi phai mat may gio moi xong viec
2 nguoi lam chung 1 cong viec thi mat 6 gio .neu nguoi thu 1 lam 1 minh mot minh mot cong viec thi se hoan thanh trong 10 gio hoi nguoi thu 2 lam 1 minh thi may gio se hoan thanh
Ba nguoi cung lam chung mot cong viec se hoan thanh cong viec do trong 2gio40phut . Neu lam rieng mot minh thi nguoi thu nhat phai mat 8gio moi xong cong viec, nguoi thu hai phai mat 12gio moi xong cong viec. Hoi neu nguoi thu ba lam mot minh thi phai mat may gio moi xong cong viec do .
Hai nguoi tho cung lam mot cong viec va hoan thanh sau 4 gio . Neu lam rieng mot mk thi nguoi thu 1 phai mat 7 gio moi xong cong viec . Hoi neu lam rieng 1 mk thi nguoi thu 2 phai mat bao lau moi xong cong viec ?
2 nguoiu lam chung 1 cong viec trong 16 gio thi xong neu nguoi thu 1 la 3 gio nguoi thu 2 lam 6 gio thi ho lam 1 phan 4 cong viec . hoi nguoi thu 1 lam 1 minh thi trong bao lau se hoan thanh cong viec
3 nguoi lam 1 cong viec 6 gio xong neu nguoif thu 1 thi mat 12h nguoi thu 2 thi mat 16h nhu vay nguoi thu 3 lam may h