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S represents the sum of the weights of n fish in pounds. Which of the

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S represents the sum of the weights of n fish in pounds. Which of the [#permalink]

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New post 13 Nov 2008, 05:40
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S represents the sum of the weights of n fish in pounds. Which of the following represents the average (arithmetic mean) of the n weights in ounces? (1pound = 16 ounces)


A. 16nS

B. 16S/n

C. 16n/S

D. nS/16

E. S/16n
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Re: S represents the sum of the weights of n fish in pounds. Which of the [#permalink]

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New post 14 Dec 2010, 01:50
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S represents the sum of the weights of n fish in pounds. Which of the following represents the average (arithmetic mean) of the n weights in ounces? (1pound = 16 ounces)

As the sum of n fish in pounds is S pounds and 1 pound = 16 ounces then the sum of n fish in ounces will be 16S ounces.

So, average wight of n fish in onces is average=(sum of weights is ounces)/(# of fish)=16S/n.

Hope it's clear.
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Re: S represents the sum of the weights of n fish in pounds. Which of the [#permalink]

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New post 14 Dec 2010, 08:51
It's very clear. Not sure why this one even held me up. Think it was one of those long study nights where even the mundane and easy seem like a never ending brick wall that you are trying to climb. Thanks Bunuel. +1 buddy and kudos.
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Re: S represents the sum of the weights of n fish in pounds. Which of the [#permalink]

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New post 14 Dec 2010, 21:37
average = s/n

in ounce, the average = \((s*16)/n\)
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Re: S represents the sum of the weights of n fish in pounds. Which of the [#permalink]

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New post 27 Jan 2018, 13:06
Bunuel, how can we plug in numbers for this one? This one looks simple, but for some reason, I'm having a hard time seeing if I'm doing it correctly...

Is this right?
n = 3 (for 3 fish)
s = 3 (each fish to weight 1 pound each. There are 3 fish so this equals to 3 pounds (total)).

Plugging into answer choice B) 16(3)/3 = 16 (since 16 is the average weight of the fish in ounces).
Re: S represents the sum of the weights of n fish in pounds. Which of the   [#permalink] 27 Jan 2018, 13:06
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