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GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2506
Given Kudos: 1055
GPA: 3.39
Which of the following procedures is always equivalent to adding 5
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20 Sep 2021, 04:44
20 Sep 2021, 04:44
Expert Reply
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Question Stats:
25% (00:11) correct
75% (01:53) wrong based on 4 sessions
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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
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
Re: Which of the following procedures is always equivalent to adding 5
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21 Sep 2021, 10:34
21 Sep 2021, 10:34
Question is asking which among the 3 operations is equivalent to finding average of 5 given numbers.
A calculates product, so no.
B adds, doubles and shifts the decimal to the left, meaning divides by 10. Basically adds and divides by 5 => average.
C finds the median, not mean.
So answer is C) II only
A calculates product, so no.
B adds, doubles and shifts the decimal to the left, meaning divides by 10. Basically adds and divides by 5 => average.
C finds the median, not mean.
So answer is C) II only
gmatclubot
Re: Which of the following procedures is always equivalent to adding 5 [#permalink]
21 Sep 2021, 10:34
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