| By Notinnotin (Notinnotin) on Friday, August 15, 2003 - 04:51 am: Edit |
in Page 167 #4
In a certain classroom, there is an equal number of boys and girls. If 2 girls and 1 boy left to go home, the ratio of boys to girls in the room would be 4:3. how many girls are in the classroom NOW.
what's your answer??
(I'm not kidding)
(Princeton Review got trouble)
| By Spectzix (Spectzix) on Friday, August 15, 2003 - 06:47 am: Edit |
3
| By Fairyofwind (Fairyofwind) on Friday, August 15, 2003 - 08:58 am: Edit |
Sorry, but why is it not 5? There are 5 boys and 5 girls in the classroom now. 5-2 = 3 girls. 5-1=4 boys. 4 boys:3 girls.
Eh.... never mind, I see it. "NOW." *sigh* what a bad question. Actually not really... because it's "would be." What's the correct answer.
| By Tootall (Tootall) on Friday, August 15, 2003 - 10:25 am: Edit |
x is the amount of number of boys and girls. x-1 is the amount of boys after one leaves. x-2 is the amount of girls. x-1/x-2=4/3 3(x-1)=4(x-2)
3x-3=4x-8 solve for x and it's 5. That's the original amount. So x-2 =5-2 and you get 3. The answer is 3.
| By Aoe2guy (Aoe2guy) on Friday, August 15, 2003 - 12:01 pm: Edit |
yup! 3
| By Serene (Serene) on Friday, August 15, 2003 - 12:15 pm: Edit |
hmm.... I don't know. i'd agree with Fairy on the wording. =) (i mean, the "if" hasn't taken place yet, has it?)
| By Akaflex (Akaflex) on Friday, August 15, 2003 - 12:54 pm: Edit |
Its 5, if it WOULD BE 4/3 if 3 people leave then 4/3x=3 dont it and then x = 4/9 ration boys to girls and 5/9 girls to boys
| By Bitz (Bitz) on Friday, August 15, 2003 - 08:07 pm: Edit |
It should be 5 (such a badly phrased conditional!).
| By Xiggi (Xiggi) on Friday, August 15, 2003 - 08:24 pm: Edit |
That's is WHY nobody should waste any time on the tests in PR, Gruber's, Kaplan's or Barron's.
Another example of how pathetic test writers can be.
| By Notinnotin (Notinnotin) on Saturday, August 16, 2003 - 06:53 am: Edit |
5 is the corret answer!!!!!! It is just the
answer in PR. why?? someone may wondering the
word "NOW", this is the trick here. But there is
another trick. Let's read the problem again,as
Serene (Serene) mentioned, the trick "if" hasn't
taken place yet, so "Now" means the class
without the "IF", another word, NO CHANGE. So PR
is right, 5!
What did i just say??? uh?? TRICKY PROBLEM!! I
strongly urge no "such a badly phrased
conditional"(quote from Bitz (Bitz)) problem in
real SAT!
| By Akaflex (Akaflex) on Saturday, August 16, 2003 - 08:15 am: Edit |
they way i explained it was it righjt>?
Report an offensive message on this page
E-mail this page to a friend
| Posting is currently disabled in this topic. Contact your discussion moderator for more information. |
| Administrator's Control Panel -- Board Moderators Only Administer Page | Delete Conversation | Close Conversation | Move Conversation |