A container holds 4 quarts of alcohol and 4 quarts of water. How many quarts of water must be added to the container to create a mixture that is 3 parts alcohol to 5 parts water by volume?  Options:
A) 4/3	B) 5/3	C) 7/3	D) 8/3	E) 10/3
Let the number of quarts that should be added to get the required ratio = x   So total quarts of water = (x + 4)   But the original number of quarts of alcohol remains the same, so we have :   4/(x+4) = 3/5   Cross-multiply:   Now we have 20 = 3x + 12   =&gt; 3x = 20 -12   =&gt; x = 8/3   Answer - 8/3
<result>D</result>
A container holds 4 quarts of alcohol and 4 quarts of water. How many quarts of water must be added to the container to create a mixture that is 3 parts alcohol to 5 parts water by volume?