solution x is 10 percent alcohol by volume, and solution y is 30 percent alcohol by volume. how many milliliters of solution y must be added to 150 milliliters of solution x to create a solution that is 25 percent alcohol by volume?  Select:
A) 250 / 3  B) 500 / 3  C) 400  D) 450  E) 600
<gadget id="calculator">25 - 10</gadget>
<output>15</output>

<gadget id="calculator">30 - 25</gadget>
<output>5</output>

<gadget id="calculator">15 / 5</gadget>
<output>3</output>

<gadget id="calculator">3 * 150</gadget>
<output>450</output>

<result>D</result>
solution x is 10 percent alcohol by volume, and solution y is 30 percent alcohol by volume. how many milliliters of solution y must be added to 150 milliliters of solution x to create a solution that is 25 percent alcohol by volume?
multiply(divide(subtract(25, 10), subtract(30, 25)), 150)
"we know that x is 10 % , y is 30 % and w . avg = 25 % . what does this mean with respect to w . avg technique ? w . avg is 1 portion away from y and 3 portion away from x so for every 1 portion of x we will have to add 3 portions of y . if x = 150 then y = 450 answer : d"