Download Aptitude Crack
img not found img not found

Alligation or Mixture

Q1: A can contains a mixture of two liquids A and B is the ratio 7 : 5. When 9 litres of mixture are drawn off and the can is filled with B, the ratio of A and B becomes 7 : 9. How many litres of liquid A was contained by the can initially?

A 10

B 20

C 21

D 25

ANS:C - 21

Suppose the can initially contains 7x and 5x of mixtures A and B respectively.

Quantity of A in mixture left = 7x - 7 x 9 litres = 7x - 21  litres.
12 4
Quantity of B in mixture left = 5x - 5 x 9 litres = 5x - 15  litres.
12 4
7x - 21
4
= 7
5x - 15  + 9
4
9
28x - 21 = 7
20x + 21 9
252x - 189 = 140x + 147 112x = 336 x = 3. So, the can contained 21 litres of A.



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.