SSC CGL 20201)25 litres of a mixture contains 30%of spirit and rest water. If 5 litres of water be mixed in it, the percentage of spirit in the new mixture is :
25%
Quantity of spirit = \(25\times \frac{30}{100} = 7.5\);
Quantity of water = 25 - 7.5 = 17.5;
After mixed up quantity of mixture = 25 + 5 = 30;
Percentage of spirit = \(\frac{7.5}{30} \times 100 = 25\)%