gwd 4 34

Kath1985

If Antonio bought two half-gallon cartons of ice cream during a special sale, what percent of the total regular price of the two cartons did he save?

(1)   Antonio paid the regular price for the first carton and received the second carton for half the regular price.

(2)   The regular price of the ice cream Antonio bought was $4.00 per half-gallon carton.
是A
我選對 但是思維是  0.5A/(A+0.5A)=0.5A/1.5A=0.33 請問有錯嗎?