Coi tiền vốn là 100% . Vậy giá bán là 120% . Muốn lãi 20% giá bán thì phải bán với giá 140% .
Giá bán nếu như muốn lãi 20% giá bán :
240 000 : ( 100 + 20 ) x ( 100 + 20 + 20 ) = 280 000 ( đồng )
đ/s : 280 000 đồng
Bài này có cách khác nữa nha bạn .
Số tiền lãi:
240000:100x20=48000(đồng)
bó tay....
280000
ai tk mk
mk tk lại
mk hứa
yên tâm
thank nhiều
280000 dung 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000% luon