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# Which of the following procedures is always equivalent to

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Manager
Joined: 21 May 2008
Posts: 83
Which of the following procedures is always equivalent to [#permalink]

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01 Sep 2008, 07:41
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Which of the following procedures is always equivalent to adding 5 given numbers and then dividing the sum by 5?

I. Multiplying the 5 numbers and then finding the 5th root of the product.
II. Adding the 5 numbers, doubling the sum, and then moving the decimal point one place to the left.
III. Ordering the 5 numbers numerically and then selecting the middle number.

(A) None
(B) I only
(C) II only
(D) III only
(E) I and III

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Senior Manager
Joined: 06 Apr 2008
Posts: 401

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01 Sep 2008, 09:03
klb15 wrote:
Which of the following procedures is always equivalent to adding 5 given numbers and then dividing the sum by 5?

I. Multiplying the 5 numbers and then finding the 5th root of the product.
II. Adding the 5 numbers, doubling the sum, and then moving the decimal point one place to the left.
III. Ordering the 5 numbers numerically and then selecting the middle number.

(A) None
(B) I only
(C) II only
(D) III only
(E) I and III

IMO C)

II means 2(a + b +c + d +e)/10
Director
Joined: 23 Sep 2007
Posts: 767

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01 Sep 2008, 13:13
klb15 wrote:
Which of the following procedures is always equivalent to adding 5 given numbers and then dividing the sum by 5?

I. Multiplying the 5 numbers and then finding the 5th root of the product.
II. Adding the 5 numbers, doubling the sum, and then moving the decimal point one place to the left.
III. Ordering the 5 numbers numerically and then selecting the middle number.

(A) None
(B) I only
(C) II only
(D) III only
(E) I and III

how to find the average of 5 numbers?

A

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
Re: PS-Fives   [#permalink] 01 Sep 2008, 13:13
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# Which of the following procedures is always equivalent to

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