I don't understand this problem

Expert replies

chal0727: Newbie | Next Rank: 10 Posts; Posts: 3; Joined: Tue Jul 31, 2007 7:42 pm

by chal0727 » Mon Dec 03, 2007 6:27 pm

Got this from one of my GMAT review books:

A type of candy comes in two flavors, sweet and sour, and in two colors, yellow and green. The color and flavor of the individual pieces of candy are not related. If in a certain box of this candy 1/4 of the yellow pieces and 5/7 of the green pieces are sour, what is the ratio of the number of yellow pieces to the number of green pieces in the box?

(1) In the box, the number of sweet yellow pieces is equal to the number of sour green pieces.

(2) In the box, the number of green pieces is two less than the number of yellow pieces.

I think the answer is C, but I'm not too sure.

Source: Beat The GMAT — Data Sufficiency | Mon Dec 03, 2007 6:27 pm

sirikesav: Junior | Next Rank: 30 Posts; Posts: 22; Joined: Wed Nov 28, 2007 10:51 am; Thanked: 3 times

by sirikesav » Tue Dec 04, 2007 11:36 am

In this Question A is correct because

the number of sweet yellow pieces is equal to the number of sour green pieces.

1/4 of the yellow pieces and 5/7 of the green pieces are sour
3/4 of the yellow pieces and 2/7 of the green pieces are sweat

hence as per the above cdt
3/4 y = 5/7g

there fore we can get y/g hence correct

2) the number of green pieces is two less than the number of yellow pieces
g = y-2 -- Data insufficient

hence I go with A

Featured schoolRound 2 closes Jan 7, 2027 58 days left

Chicago Booth

Since 1982, 10 Booth faculty members have received the Nobel Prize in Economic Sciences, more than any other business school.

#3
U.S. News rank: $175,000
Median base salary: 670
Average GMAT Focus: 635
Students in the class

Apply to Booth Visit chicagobooth.edu See the full profile

Photo: Warren LeMay, CC BY-SA 2.0

GMAT Course Reviews

563 reviews

1168 reviews

431 reviews

359 reviews

147 reviews

5/5

5 Star (563 Reviews)

"Target Test Prep is the closest to the official version of the GMAT exam, about 99% accuracy in terms of the quality and quantity of information. The course has excellently created singular sets of focused lessons and tests for every possible topic that one could come across in the official GMAT exam."

"The TTP course maximizes the efficiency of the time you spend studying. It will take time and effort but I could almost guarantee that if you complete the course exactly as it is laid out you will get an amazing score. They also have a very responsive team willing to help with any questions you might have."

"TTP has two things that I think no other test prep company offers: A teaching approach that reinforces understanding and an attitude that will give you the mental preparedness needed to succeed on the test. TTP gives you a deep understanding of the concept you need to know while teaching you how to think."

Write a Review