Answer:
12.0 %.
Explanation:
Mass of the sugar in 240.0 mL of the drink = 30.0 g.
Mass of the 240.0 mL drink = 251.0 g.
∴ 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 %