Nomor 11 ,thnkyou yaa..

misal: pita merah = pm ; pita kuning = pk dan pita biru = pb

pm = 3 1/4 = 13/4 m

pk = pm + 1/2 ===> 13/4 + 1/2 = 13/4 + 2/4 = 15/4 m

pb = pk - 1/4 ===> 15/4 - 1/4 = 14/4 m

Jadi pernyataan yg benar adalah ( D )