model 10 percentage with allegations & mixture Practice Questions Answers Test with Solutions & More Shortcuts

Question : 11 [SSC CHSL 2013]

One type of liquid contains 20% water and the second type of liquid contains 35% of water. A glass is filled with 10 parts of first liquid and 4 parts of second liquid. The water in the new mixture in the glass is

a) 24$2/7$%

b) 37%

c) 46%

d) 12$1/7$%

Question : 12 [SSC CGL Prelim 2003]

How much pure alcohol has to be added to 400 ml of a solution containing 15% of alcohol to change the concentration of alcohol in the mixture to 32% ?

a) 68 ml

b) 60 ml

c) 100 ml

d) 128 ml

Question : 13 [SSC CPO S.I.2009]

If 4 litres of water is evaporated on boiling from 12 litres of salt solution containing 7 percentage salt, the percentage of salt in the remaining solution is

a) 13%

b) 10.5%

c) 11.5%

d) 12%

Question : 14

8 litres of water is added to 32 litres of a solution containing 20% of alcohol in water. What is the approximate concentration of alcohol in the solution now ?

a) 24%

b) 16%

c) 8%

d) 12%

Question : 15 [SSC CHSL 2011]

A vessel has 60 litres of solution of acid and water having 80% acid. How much water be added to make it a solution in which acid forms 60% ?

a) None of these

b) 48 litres

c) 20 litres

d) 36 litres