VeritasPrepKarishma wrote:
144144 wrote:
hmm. why is it not B? if u know the prices per gallon, u know how much water u need to add to each one in order to make them worth 480.
or the questions is how much when milk I + Milk II is mixed?
The question says that a mixture has milk type I and milk type II and now we need to add water to make the average value = $480. So how much water needs to be added?
To find the volume of water, you need to know the price of all three - milk type I, milk type II and water. You also need the volume in which milk type I and milk type II were added.
B alone isn't sufficient because it just gives you the price of milk type I and type II. We don't know the volume of these two. Even when you have both statements 1 and 2, you do not know the price of water (which may not be assumed to be available free of cost)
But doesn't it say PER GALLON? So essentially B says --> 600 + 540 = $1140 for just milk (say 2 gallons). So one gallon (total) would be 1140/2 which is $570. So to bring it down to $480, we would know how much dilution is required PER GALLON? (Sorry for caps, just trying to emphasize, not yell
).
Also, in questions where water price (or anything else) is not to be assumed?
Thank you!