A Jar contains a mixture of AB in the ratio 4:1. When 30 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:
A) 12  B) 48  C) 16  D) 20  E) 25
30 litres of mixture that is replaced will contain 24 litres of A and 6 litres of 48 (as A:48 = 4:1)   Let the initial volume of the mixture be 4K + 1K = 5K   So by condition ,   [ 4K-24]/ [ K-6+30 ]   4  + 1= 
<gadget id="calculator">  4  + 1</gadget>
<output>5</output>
5K   So by condition ,   [ 4K-24]/ [ K-6+30 ]= 2/3 = &gt; 12K-72 = 2K-12+60 =&gt; 10K = 120   Solve for K which is K = 12   So initial volume of liquid A = 4K = 48 litres   Answer : 48
<result>B</result>
A Jar contains a mixture of AB in the ratio 4:1. When 30 L of Mixture is replaced with liquid B, ratio becomes 2:3. How many liters of liquid A was present in mixture initially.