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Which of the following procedures is always equivalent to

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Intern
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Which of the following procedures is always equivalent to [#permalink] New post 18 Nov 2008, 06:18
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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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Re: D.S. [#permalink] New post 18 Nov 2008, 12:18
bindrakaran001 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


C
(sum)X2/10=(sum)/5=average
Re: D.S.   [#permalink] 18 Nov 2008, 12:18
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Which of the following procedures is always equivalent to

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