18^2)(5^4)/60^3 A)1/8 B)5/16 C)3/5 D)4/5 E)15/16 : PS Archive
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# 18^2)(5^4)/60^3 A)1/8 B)5/16 C)3/5 D)4/5 E)15/16

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Manager
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18^2)(5^4)/60^3 A)1/8 B)5/16 C)3/5 D)4/5 E)15/16 [#permalink]

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04 Sep 2007, 16:50
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(18^2)(5^4)/60^3

A)1/8
B)5/16
C)3/5
D)4/5
E)15/16
GMAT Club Legend
Joined: 07 Jul 2004
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Location: Singapore
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Kudos [?]: 358 [0], given: 0

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04 Sep 2007, 18:03
(2^2)(3^4)(5^4)/(5^3)(2^6)(3^3)

= 15/2^4 = 15/16
VP
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05 Sep 2007, 00:45
I second (E)

(18*18*5*5*5*5)/(60*60*60)

(18*18*5)/(12*12*12)

(3*3*5)/(2*2*12)

(3*5)/(4*4)

15/16

Manager
Joined: 10 Aug 2007
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05 Sep 2007, 04:35
(18^2 * 5^4)/60^3 = 6*3*6*3*5*5*25/6*10*6*10*60 = 3*3*5*5*25/10*10*3*20 = 3*25/4*20 = 3*5/4*4 = 15/16
05 Sep 2007, 04:35
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