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Which is greater: 7! or 6! + 6! + 6! + 6! + 6! + 6! + 6!?

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Senior Manager
Senior Manager
Joined: 20 May 2014
Posts: 282
Followers: 14

Kudos [?]: 49 [0], given: 220

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Which is greater: 7! or 6! + 6! + 6! + 6! + 6! + 6! + 6!? [#permalink] New post 05 Nov 2017, 01:39
00:00

Question Stats:

78% (00:07) correct 21% (00:02) wrong based on 14 sessions
Quantity A
Quantity B
7!
6! + 6! + 6! + 6! + 6! + 6! + 6!



A. The quantity in Column A is greater
B. The quantity in Column B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given

Kudos for correct solution.
[Reveal] Spoiler: OA
Director
Director
Joined: 03 Sep 2017
Posts: 521
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Kudos [?]: 327 [0], given: 66

Re: Which is greater: 7! or 6! + 6! + 6! + 6! + 6! + 6! + 6!? [#permalink] New post 05 Nov 2017, 03:01
7! = 1*2*3*4*5*6*7. Then quantity B can be rewritten as 7*6! = 7*(1*2*3*4*5*6) = 1*2*3*4*5*6*7. Thus the two quantities are equal.

Answer C
Re: Which is greater: 7! or 6! + 6! + 6! + 6! + 6! + 6! + 6!?   [#permalink] 05 Nov 2017, 03:01
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Which is greater: 7! or 6! + 6! + 6! + 6! + 6! + 6! + 6!?

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