tong cd va cr la:244*2=488(m)
CD la: (488+22)/2=255(m)
CR la: 488-255=233(m)
S manh vuon la: 255*233=59415(m2)
1m2 thu hoach duoc la: 210:30=7(kg rau)
ca manh vuon thu hoach duoc la: 59415*7=415905(kg rau)
Doi:415905kg=415,905 ta rau
D/S: 415,905 ta rau