Arithmetic Questions And Answers :: Alligation Mixture: part1

11.A mixture of 20 kg. of spirit and water contains 10% water. How much water must be added to this mixture to raise the percentage of water to 25% ?

12.A sum of Rs. 41 was divided among 50 boys and girls. Each boy gets 90 paise and a girl 65 paise. The number of boys is ?

13.A dishonest milkman professes to sell his milk at C.P. but he mixes it with water and thereby gains 25%. The percentage of water in the mixture is :

14.A jar full of whisky contains 40% of alcohol. A of this whisky is replaced by another containing 19% alcohol and now the percentage of alcohol was found to be 26. The quantity of whisky replaced is :

15.Rs. 1000 is lent out in two parts, one at 6% simple interest and the other at 8% simple interest. The yearly income is Rs. 75. The sum lent at 8% is :