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Manager
Joined: 24 Oct 2005
Posts: 162

A total of n trucks and cars are parked in the lot. If the
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Updated on: 21 Sep 2006, 15:06
A total of n trucks and cars are parked in the lot. If the number of cars is 1/4 the number of trucks, and 2/3 of the trucks are pickups, how many pickups, in terms of n, are parked in the lot?
A. 1/6n
B. 5/12n
C. 1/2n
D. 8/15n
E. 11/12n
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Originally posted by positive soul on 20 Sep 2006, 15:05.
Last edited by positive soul on 21 Sep 2006, 15:06, edited 1 time in total.



Director
Joined: 23 Jun 2005
Posts: 787

Re: Cars & Trucks
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20 Sep 2006, 19:57
positive soul wrote: A total of n trucks are parked in the lot. If the number of cars is 1/4 the number of trucks, and 2/3 of the trucks are pickups, how many pickups, in terms of n, are parked in the lot?
A. 1/6n B. 5/12n C. 1/2n D. 8/15n E. 11/12n
Please show your work.
Is the wording right? The way I see it, total no. of trucks = n. 2/3rds are pick ups, so no of pickups = 2n/3



Senior Manager
Joined: 11 Jul 2006
Posts: 353
Location: TX

Yup , something wrong with the question here. Did you miss one of the answer options like "None of the above",



Manager
Joined: 29 Aug 2006
Posts: 155

Re: Cars & Trucks
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20 Sep 2006, 20:16
positive soul wrote: A total of n trucks are parked in the lot. If the number of cars is 1/4 the number of trucks, and 2/3 of the trucks are pickups, how many pickups, in terms of n, are parked in the lot?
A. 1/6n B. 5/12n C. 1/2n D. 8/15n E. 11/12n
Please show your work.
Do you mean 2/3 of the cars are pickups?
In that case, the answer is A =n/6
Else isnt the answer is 2n/3 ?



VP
Joined: 21 Mar 2006
Posts: 1046
Location: Bangalore

A total of n trucks are parked in the lot. If the number of cars is 1/4 the number of trucks, and 2/3 of the trucks are pickups, how many pickups, in terms of n, are parked in the lot?
IF the question is worded correctly (which I don't think is), answer has to be (2/3)N. Easiest Ps I every solved! LOL



Manager
Joined: 24 Oct 2005
Posts: 162

You guys are right, I missed a very important piece of information.
I have just edited the post.



Senior Manager
Joined: 11 Jul 2006
Posts: 353
Location: TX

Answer C n/2
Total N Cars and Trucks
Cars n/4
Trucks 3n/4
Pickups = 2/3* 3n/4= n/2



Manager
Joined: 25 May 2006
Posts: 222

D: 8/15
T+C=n
C=(1/4)T
PU=(2/3)T
T(1+1/4)=(5/4)T=n > T=(4/5)n
PU=(2/3)(4/5)n=(8/15)n
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Retired Moderator
Joined: 05 Jul 2006
Posts: 1723

A total of n trucks and cars are parked in the lot. If the number of cars is 1/4 the number of trucks, and 2/3 of the trucks are pickups, how many pickups, in terms of n, are parked in the lot?
A. 1/6n
B. 5/12n
C. 1/2n
D. 8/15n
E. 11/12n
T+C = N
C = T/4 THUS N = 5/4 T THUS T = 4/5N
2/3 T = PICK UPS IN TERMS OF N
2/3*4/5 = 8/15N MY ANSWER IS D



Senior Manager
Joined: 11 Jul 2006
Posts: 353
Location: TX

My Mistake
You are right , it should be 2/3*4/5 N = 8N/15



Director
Joined: 23 Jun 2005
Posts: 787

D, as most of you have already deduced
t+c=n
t+1/4t=n
t=4/5n
p=2t/3
=2*4n/3*5
= 8n/15



Manager
Joined: 24 Oct 2005
Posts: 162

Good job guys.
The answer is D.



Manager
Joined: 13 Sep 2006
Posts: 186
Schools: Olin Business School  Washington University

D.
Attacked this one by plugging in numbers. Chose 60 for trucks, which yields 15 cars and 75 total cars & trucks (n), and 40 pickups. Divide 40/75, reduces to 8/15.



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Re: A total of n trucks and cars are parked in the lot. If the
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09 Oct 2017, 05:41
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