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# If the average of 5 nos. is 62, what is the range of the

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Intern
Joined: 25 May 2008
Posts: 43
If the average of 5 nos. is 62, what is the range of the [#permalink]

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17 Dec 2008, 06:05
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Question 30

If the average of 5 nos. is 62, what is the range of the numbers?

1. The average of the 4 largest numbers is 74.
2. The average of the 4 smallest numbers is 40

Director
Joined: 14 Aug 2007
Posts: 704
Re: DS: Average and range [#permalink]

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17 Dec 2008, 07:08
C.

1)gives us largest #
2)gives us smallest#
Retired Moderator
Joined: 05 Jul 2006
Posts: 1741
Re: DS: Average and range [#permalink]

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17 Dec 2008, 07:09
[quote="hbs2012"]Question 30

If the average of 5 nos. is 62, what is the range of the numbers?

1. The average of the 4 largest numbers is 74.
2. The average of the 4 smallest numbers is 40

310 = sum of the 5

4 largest sum = 296 thus the smallest = 14......insuff

from 2

the largest = 310 - 160 = 150......insuff

both

range is = 150-14..............C
Current Student
Joined: 28 Dec 2004
Posts: 3312
Location: New York City
Schools: Wharton'11 HBS'12
Re: DS: Average and range [#permalink]

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17 Dec 2008, 17:02
hbs2012 wrote:
Question 30

If the average of 5 nos. is 62, what is the range of the numbers?

1. The average of the 4 largest numbers is 74.
2. The average of the 4 smallest numbers is 40

a+b+c+d+e ..its asking e-a?

1) b+c+d+e=4*74

insuff

2)
a+b+c+d=40*4

minus (1)-(2) and you get e-a=4(74-40) or 136

sufficient
Re: DS: Average and range   [#permalink] 17 Dec 2008, 17:02
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# If the average of 5 nos. is 62, what is the range of the

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