A solution of 66 litres contains milk and water in the ratio 7:x. If four litres of water is added to the solution, the ratio becomes 3:2, find the value of x?  Pick.
A) 8	B) 5	C) 3	D) 4	E) 2
Exp. Total new quantity = original sol + water =66+4= 
<gadget id="calculator">66+4</gadget>
<output>70</output>
70   New ratio= 3:2, New quantity of milk =3/5*70= 
<gadget id="calculator">3/5*70</gadget>
<output>42</output>
42 Lit,   New quantity of water= 2/5*70= 
<gadget id="calculator">2/5*70</gadget>
<output>28</output>
28 Lit   Water present initially= (28-4)= 
<gadget id="calculator">(28-4)</gadget>
<output>24</output>
24 Lit   Ratio= 42/24 =7/4 There for x = 4   Answer: 4
<result>D</result>
A solution of 66 litres contains milk and water in the ratio 7:x. If four litres of water is added to the solution, the ratio becomes 3:2, find the value of x?