Question : A sugar solution of 3 litres contains 60% sugar. One litre of water is added to this solution. Then the percentage of sugar in the new solution is:
Option 1: 30%
Option 2: 45%
Option 3: 50%
Option 4: 60%
Correct Answer: 45%
Solution : The quantity of sugar is 3 litres. Amount of sugar in solution $=\frac{60}{100} × 3 = 1.8$ litres If 1 litre of water is added, the new solution becomes = 3 + 1 = 4 litres Percentage of sugar in new solution $=\frac{1.8}{4}×100 = 45\%$ Hence, the correct answer is 45%.
Result | Eligibility | Application | Selection Process | Cutoff | Admit Card | Preparation Tips
Question : If 60 litres of a milk solution has 40% milk in it, then how much milk should be added to make the milk 60% in the solution?
Question : 8 litres of water is added to 32 litres of a solution containing 20% alcohol in water. What is the approximate concentration of alcohol in the solution now?
Question : In a mixture of 25 litres, the ratio of acid to water is 4 : 1. Another 3 litres of water is added. The ratio of acid to water in the new mixture is:
Question : If 4 litres of water is evaporated on boiling from 12 litres of salt solution containing 7 percent salt, the percentage of salt in the remaining solution is:
Question : A canister holds 36 litres of a mixture of milk and water in a ratio of 3 : 1. 15 litres of milk is added to the canister. The new ratio of the mixture is:
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile