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# DS-3 Digit n.jpg

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Manager
Joined: 21 May 2008
Posts: 83

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10 Oct 2008, 06:45
00:00

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DS-3 Digit n.jpg [ 9.17 KiB | Viewed 781 times ]
Manager
Joined: 27 Sep 2008
Posts: 76

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10 Oct 2008, 07:13
30 = 3*2*5 ---> true

30 = 1*3*2*5 ---> false

insufficient

10 = 1+9 ---> true

10 = 1+1+1+1+1+1+1+1+1+1 ---> false

insufficient

both

we are left with 3*2*5 = 30 and 3+2+5 = 10

sufficient

VP
Joined: 30 Jun 2008
Posts: 1022

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10 Oct 2008, 08:14
Is it A ?

(1)
the three digits can be 2,3 and 5

235, 325 and 532 all are less than 550.

(2)

There are many possibilities. Not sufficient.
_________________

"You have to find it. No one else can find it for you." - Bjorn Borg

Manager
Joined: 27 Sep 2008
Posts: 76

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10 Oct 2008, 08:44

Missed on that 3 digit part...
Intern
Joined: 22 Aug 2008
Posts: 3

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10 Oct 2008, 13:38
I think the answer shud be C.
based on 1,the 3 digits cud also be 6,5 and 1.
in that case 651 or 561 are >550.
Senior Manager
Joined: 21 Apr 2008
Posts: 265
Location: Motortown

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10 Oct 2008, 14:40
C

1:
651 = 6*5*1 = 30
651 > 550
532 = 5*3*2 = 30
532 < 550
Not Sufficient

2.
541 = 5+4+1 = 10
541<550
532 = 5+3+2 = 10
532<550
but
550 = 5+5+0 = 10
550 is not less than 550
Not Sufficient

Together:
examples 532, 235 <550
Current Student
Joined: 28 Dec 2004
Posts: 3317
Location: New York City
Schools: Wharton'11 HBS'12

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10 Oct 2008, 14:42
i will go with C..

5.3.2 or any variation of this will still be less than 550
Re: DS-3 digit n   [#permalink] 10 Oct 2008, 14:42
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