A Jar contains a mixture of AB in the ratio 3:2. When 20 L of Mixture is replaced with liquid B, ratio becomes 2:3. How many liters of liquid A was present in mixture initially.
Choose the correct choice from the following.
A) 12 B) 15 C) 16 D) 20 E) 36
20 litres of mixture that is replaced will contain 12 litres of A and 8 litres of B (as A:B = 3:2)   Let the initial volume of the mixture be 3K + 2K = 5K   So by condition ,   [ 3K-12]/ [ 2K-8+20 ]   3  + 2= 
<gadget id="calculator">  3  + 2</gadget>
<output>5</output>
5K   So by condition ,   [ 3K-12]/ [ 2K-8+20 ]= 2/3 =&gt; 9K-36 = 4K-16+40 =&gt; 5K= 60   Solve for K which is K = 12   So initial volume of liquid A = 3K = 36 litres   Answer : 36
<result>E</result>
A Jar contains a mixture of AB in the ratio 3:2. When 20 L of Mixture is replaced with liquid B, ratio becomes 2:3. How many liters of liquid A was present in mixture initially.