The total volume of the mixture is 150 litres.
The ratio of acid to water is 2:3.
Total ratio parts = 2 + 3 = 5.
30 litres of the mixture are removed.
After removal:
30 litres of water are added to the remaining mixture.
Calculate the percentage of acid in the final mixture:
Percentage of Acid = \(\frac{\text{Final Acid Volume}}{\text{Final Total Volume}} \times 100\)
Percentage of Acid = \(\frac{48}{150} \times 100\)
Percentage of Acid = \(0.32 \times 100\) = 32%
The final percentage of acid in the mixture is 32%.
A container has 60 litres of a mixture of acid and water in the ratio 7:3. 20% of the mixture is taken out and replaced with water. This operation is repeated once more. What is the final percentage of acid in the mixture?
My father is presently 25 years older than me. The sum of our ages 5 years ago was 39 years. Find my present age.
Rice worth ₹43/kg and ₹67/kg are mixed with a third variety in the ratio 2 : 1 : 5. If the mixture is worth ₹96/kg, the price (in ₹) of the third variety of rice per kg will be:
42 litres of milk at ₹25 per litre is mixed with 28 litres of milk at ₹40 per litre. Find the average price of the mixture.
15 kg of ₹10 per kg wheat is mixed with 5 kg of another type of wheat to get a mixture costing ₹30 per kg. Find the price (per kg) of the costlier wheat.
If a + b + c = 0, then the value of (a² + b² + 2ab) is equal to: