Correct Answer - Option 2 : 24 %
Given∶
A 20 litre drink contains 30% champagne and 70% soda.
5 litres of soda is added to drink.
Formula Used∶
Basics of percentage.
Calculation∶
Amount of champagne in 20 L drink = 30% of 20
⇒ 30/100 × 20 = 6 L
Amount of soda in 20 L drink = 20 - 6 = 14 L
After addition of 5 L soda,
Total amount of drink = 25 L
Percentage of soda in new drink = (14 + 5) / 25 = 19/25 = 0.76 = 76 %
Percentage of champagne in new drink = 1 - 0.76 = 0.24 = 24%
∴ The correct option is (2).