<em>The percent composition of sugar in the drink = [(mass of the sugar) / (total mass of the drink)] x 100.</em>
Mass of the sugar in 240.0 mL of the drink = 30.0 g.
Mass of the 240.0 mL drink = 251.0 g.
<em>∴ The percent composition of sugar in the drink = [(mass of the sugar) / (total mass of the drink)] x 100 = [(30.0 g) / (250.0 g)] x 100 = 12.0 %</em>
Gold has a very high density of about 19.32g/cm^3 while Aluminum has a low density of 2.7 gm/cm^3 which means gold can pack more amount of matter in a comparatively small space as compared to Aluminum.