Question

[kudou shinichi]

1 nguoi bo ra 12000000 dong de mua 1 mon hang . Sau khi ban het so hang do; nguoi ta thu duoc ca thay 15600000 dong. Hoi 

a, Tien ban hang bang bao nhieu phan tram tien von

b; Tien lai bang bao nhieu phan tram tien von

c;Tien lai bang bao nhieu phan tram tien ban

Giup minh voi mn oi

Answer 1

[Baby Anh]

a ) 130 %

b ) 30 % 

c ) 23 . 07 %

e k cho tui voi

Answer 2

[Tran Van Long]

a 130%

b 30%

c 23.07%