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Running at the same constant rate, 6 identical machines can

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Running at the same constant rate, 6 identical machines can [#permalink] New post 29 Oct 2005, 13:56
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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
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 [#permalink] New post 29 Oct 2005, 15:21
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
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 [#permalink] New post 29 Oct 2005, 15:58
i too got it as 1800.....but the OA says 10,800 ?????
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 [#permalink] New post 29 Oct 2005, 16:15
6/270 = 10/X
6X=2700
X=450/minute

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

What book are you using?
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 [#permalink] New post 29 Oct 2005, 16:34
i know this question is in the OG...but I did it from one of the on-line test and it showed wrong
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 [#permalink] New post 29 Oct 2005, 22:27
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
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 [#permalink] New post 29 Oct 2005, 22:44
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
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 [#permalink] New post 29 Oct 2005, 22:53
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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 :lol:
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. :shock:
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 [#permalink] New post 30 Oct 2005, 03:54
Sushom, you must have a typo in your OG. I just double checked, this is problem #19 and the OA is indeed 1800.
  [#permalink] 30 Oct 2005, 03:54
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