THE CORRECT ANSWER IS (A). WHAT YOU NEED TO KNOW TO ANSWER THE QUES...
8. The correct answer is (A). What you need to know to answer the question is,
essentially, how many cookies can be made per a given unit of butter or, conversely, how
much butter per cookie is needed. Statement (1) essentially provides this information. It
tells you that
5
3
cup butter is needed for 30 cookies; from this information, you can easily
calculate the number of cookies per
2
3
cup—which answers the question. You could
simply set up the following proportion, then solve for B (batch size in terms of number
of cookies):
2
5
3
30
5
B
As you can plainly see without doing the math, you can solve for B and therefore answer
the question. Just for the record, B
5
12. (That’s the answer to the question.) Statement
(2) alone tells us nothing we did not already know; it merely says that tripling the
desired output is achieved by tripling the quantity of each ingredient; that is, 3
3
2
3
5
2.