gia gao thang 3 cao hon thang 2 la 20 o/o.gia gao thang 4 thap hon thang 3 la 10 o/o. hoi gia gao thang 4 so voi thang 2 thi cao hon hay  thap hon bao nhieu phan tram?

voi so tien du mua 10kg gao te thi chi mua duoc 8kg gao nep. Hoi so voi gia 1kg gao te thi gia 1kg gao nep dat hon bao nhieu phan tram?

Giup minh voi nha!!!!!!!!!!!!

Gia GAO Thap hon Gia GAO thang3 la 10 Phan tram Gia GAO thang5 cao hon Gia GAO thang 4 10 phan tram hoi Gia GAO thang5 thap hon thang 3 la bao nhieu

Gia gao thang 5 so voi thang 4 tang 10%, thang 6 so voi thang 5 lai giam 10%. Hoi gia gao thang 6 so voi thang 4 tang hay giam bao nhieu phan tram ?

Gia gao thang 5 so voi thang 4 tang 10%,thang 6 so voi thang 5 lai giam 10%.Hoi gia gao thang 6 so voi thang 4 tang hay giam bao nhieu phan tram?

mot nguoi mua 1.5 kg gao nep het 10800 dong nguoi do mua them 1luong gao te gap ruoi luong gao nep voi gia tien 1kg gao te chi bang 2 phan 3 gia tien 1kg gao nep .Hoi nguoi do mua gao het tat ca bao nhieu tien

mot nguoi mua gao het 1. 600. 000 nghan dong sau khi ban het so gao do nguoi do thu duoc 1. 720. 000 nghan dong . hoi : 

a. tien ban = bao nhieu phan tram tien von

b . nguoi  do lai bao nhieu phan tram 

tra loi nhanh k cho

cuoi nam hoc mot cua hang ban sach bao da giam gia ban sach di 20% .Hoi voi so tien mua hang nhu truoc day thi khi giam gia se mua duoc so hang tang tang them bao nhieu phan tram so voi so hang mua duoc tu so tien do khi chua giam gia

Mot cua hang ban gao duoc lai 25 % gia mua. Hoi cua hang duoc lai bao nhieu phan tram gia ban ?