Question

[nguyenminhhang]

nguoi ta trong mia tren mot khu dat hinh chu nhat co chieu rong 130 m , chieu dai hon chieu rong 70 m.

a tinh dien tich khu dat do

b. biet rang, trung binh cu 100 m2 thu hoach duoc 300 kg mia . hoi tren ca khu dat do nguoi ta thu hoach duoc bao nhieu tan mia ? 

Answer 1

[Tri Khang Nguyen]

chieu dai hinh chu nhat:

130+70=200(m)

a)dien tich khu dat do:

200x130=26000(m2)

b)100 m2 -> 300 kg mia

26000 m2->? kg mia

tren khu dat do nguoi ta thu hoach duoc:

26000x300:100=tự tính(kg)

Dap so: a)

b)