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# 2's and 24's

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Manager
Joined: 30 May 2009
Posts: 218
Followers: 5

Kudos [?]: 120 [0], given: 0

2's and 24's [#permalink]

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28 Jun 2009, 17:58
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Question Stats:

100% (01:09) correct 0% (00:00) wrong based on 2 sessions

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If the terms of a series are either "2" or "24" and the sum of all the terms of the series is 124, then which of the following could be the number of "2s" in the series?

A. 48
B. 35
C. 38
D. 28
E. 26
Manager
Joined: 28 Jan 2004
Posts: 203
Location: India
Followers: 2

Kudos [?]: 27 [0], given: 4

Re: 2's and 24's [#permalink]

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28 Jun 2009, 21:51
C
Let the option A is correct. Then sum of 2's will be 96 (48*2) so remaining sum will be 124 - 96 = 30. This can not be completed by 24's so eliminate it.

If B then sum of 2's = 70. Remaining sum = 54 this can not be completed by 24's. eiminate it.

if C then sum of 2's = 76 remaining sum = 48 which is clearly competed by using 24's two times. hence this is the answer.I don't even bothered to check option D and E.
Manager
Joined: 30 May 2009
Posts: 218
Followers: 5

Kudos [?]: 120 [0], given: 0

Re: 2's and 24's [#permalink]

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29 Jun 2009, 05:56
Even I picked C. But the OA is given as E.

So lets wait for some more responses.

Actually if you plug in numbers and see you will realize that both C and E are right....not sure what I'm missing??
Manager
Joined: 28 Jan 2004
Posts: 203
Location: India
Followers: 2

Kudos [?]: 27 [0], given: 4

Re: 2's and 24's [#permalink]

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29 Jun 2009, 11:39
what is the source for this question ?
Both C and E are correct.
Re: 2's and 24's   [#permalink] 29 Jun 2009, 11:39
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# 2's and 24's

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