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# Running at the same constant rate, 6 identical machines can

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Manager
Joined: 10 Sep 2005
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Running at the same constant rate, 6 identical machines can [#permalink]  29 Oct 2005, 12:56
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Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes
Senior Manager
Joined: 02 Oct 2005
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6 identical machines can produce a total of 270 bottles per minute

-> Hence 1 machine can produce 270/6 bottles per min

how many bottles could 10 such machines produce in 4 minutes

-> 10 * 4 * 270/6
= 1800

Ans: 1800
Manager
Joined: 10 Sep 2005
Posts: 164
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i too got it as 1800.....but the OA says 10,800 ?????
Manager
Joined: 04 Sep 2005
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Location: Fringes of the Boreal, Canada
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6/270 = 10/X
6X=2700
X=450/minute

Therefore, it will produce 1800 in 4 minutes. No?

What book are you using?
Manager
Joined: 10 Sep 2005
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i know this question is in the OG...but I did it from one of the on-line test and it showed wrong
Manager
Joined: 01 Aug 2005
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Guys, you have to be careful when reading the question!

It does not say that they produce 270 bottles together, it says that 6 identical machines produce 270 bottles!

So 10 machines can produce 2700 bottles in total.

in 4 minutes 10 machines produce 2700x4=10800
SVP
Joined: 05 Apr 2005
Posts: 1736
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xennie wrote:
Guys, you have to be careful when reading the question!
It does not say that they produce 270 bottles together, it says that 6 identical machines produce 270 bottles!
So 10 machines can produce 2700 bottles in total.
in 4 minutes 10 machines produce 2700x4=10800

no, it says 6 idential machines can produce a total of 270 bottles in a minuet. check the below.

sushom101 wrote:
Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes
Manager
Joined: 01 Aug 2005
Posts: 68
Followers: 1

Kudos [?]: 2 [0], given: 0

Quote:
no, it says 6 idential machines can produce a total of 270 bottles in a minuet. check the below.

Just came home after a long night out and am a bit out of it so to speak -I could swear that I have seen this question in some book a while back and it said "270 bottles a minute each", hence the OA being 10800. Guess I should have read the first post more closely
I do not understand why the question stem would tell us anything about running at the same constant rate if it meant 6 machines produce 270 bottles though.

Could you please post the book and page you got the question from, as well as the OE.
Current Student
Joined: 29 Jan 2005
Posts: 5253
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Sushom, you must have a typo in your OG. I just double checked, this is problem #19 and the OA is indeed 1800.
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