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Question 1
In what ratio must a mixture of 30% alcohol strength be mixed with that of 50% alcohol strength so as a mixture of 45% alcohol strength?
Question 2
1 L of water is added to 5 L of alcohol-water solution containing 40% alcohol strength. The strength of alcohol in the new solution will be.
Question 3
A vessel has 60 litres of solution of acid and water having 80% acid. How much water should be added to make it a solution in which acid forms 60%?
Question 4
A jar contains a mixture of two liquids A and B in the ratio 4 : 1. When 10 litre of the mixture is replaced with liquid B, the ratio becomes 2 : 3. The volume of liquid A present in the jar earlier was:
Question 5
Two solutions of 90% and 97% purity are mixed, resulting in 21 litres of mixture of 94% purity. The quantity of the second solution in the resulting mixture, in litres, is:
Question 6
In what ratio must a grocer mix teas at ₹ 60 / kg and ₹ 65 / kg. So that by selling the mixture at ₹ 68.20 /kg he may gain 10%?
Question 7
The ratio of the volumes 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
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Apr 26SSC & Railway
