Practice Questions on Alligation or Mixture

01) The ratio of the volume of water and glycerine in 240cc of a mixture is 1 : 3. The quantity of water (in cc) that should be added to the mixture so that the new ratio of the volumes of water and glycerine becomes 2 : 3 is

          a) 55 cc

          b) 60 cc

          c) 62.5 cc

          d) 64 cc

02) In a mixture of 25 liters, the ratio of acid to water is 4 : 1. Another 3 litres of water is added to the mixture. The ratio of acid to water in the new mixture is

          a) 5 : 2

          b) 2 : 5

          c) 3 : 5

          d) 5 : 3

03) Two vessels A and B contains acid and water in the ratio 4 : 3 and 5 : 3 respectively. Then the ratio in which these mixtures to be mixed to obtain a new mixture in vessel C containing acid and water in the ratio 3 : 2 is

          a) 5 : 8

          b) 7 : 8

          c) 7 : 5

          d) 4 : 7

04) The ratio of spirit and water in two mixtures of 20 litre and 36 litre is 3 : 7 and 7 : 5 respectively. Both the mixtures are mixed together. Now the ratio of the spirit and water in the new mixture is

          a) 25 : 29

          b) 9 : 10

          c) 27 : 29

          d) 27 : 31

05) An alloy contains copper, zinc and nickel in the ratio of 5 : 3 : 2. The quantity of nickel (in kg) that must be added to 100 kg of this alloy to have the new ratio 5 : 3 : 3 is

          a) 8

          b) 10

          c) 12

          d) 15

06) Two vessels contain milk and water in the ratio 3 : 2 and 7 : 3. Find the ratio in which the contents of the twovessels have to be mixed to get a new mixture in which the ratio of milk and water is 2 : 1.

          a) 2 : 1

          b) 1 : 2

          c) 4 : 1

          d) 1 : 4

07) In tow types of stainless steel, the ratio of chromium and steel are 2 : 11 and 5 : 21 respectively. In what proportion should the two types be mixed so that the ratio of chromium to steel in the mixed type becomes 7 : 32?

          a) 2 : 3

          b) 3 : 4

          c) 1 : 2

          d) 1 : 3

08) The milk and water in two vessels A and B are in the ratio 4 : 3 and 2 : 3 respectively. In what ratio, the liquids in both the vessels be mixed to obtain a new mixture in vessel C containing half milk and half water?

          a) 7 : 5

          b) 5 : 2

          c) 3 : 11

          d) 1 : 2

09) There are two containers of equal capacity. The ratio of milk to water in the first container is 3 : 1, in the second container 5 : 2. If they are mixed up, the ratio of milk to water in the mixture will be

          a) 28 : 41

          b) 41 : 28

          c) 15 : 41

          d) 41 : 15

10) A vessel full of pure acid contains 10 litres of it, of which 2 litres are withdrawn. The vessel is then filled with water. Next 2 litres of the mixture are withdrawn, and again the vessel is filled up with water. The ratio of the acid left in the vessel with that of the original quantity is

          a) 1 : 5

          b) 4 : 5

          c) 4 : 25

          d) 16 : 25