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Manager
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DS-3 Digit n.jpg [#permalink]

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New post 10 Oct 2008, 06:45
00:00
A
B
C
D
E

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(N/A)

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0% (00:00) correct 0% (00:00) wrong based on 0 sessions

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Manager
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Re: DS-3 digit n [#permalink]

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New post 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

:)

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Re: DS-3 digit n [#permalink]

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

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Manager
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Re: DS-3 digit n [#permalink]

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New post 10 Oct 2008, 08:44
:shock:

Missed on that 3 digit part...

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Intern
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Re: DS-3 digit n [#permalink]

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New post 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.

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Senior Manager
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Re: DS-3 digit n [#permalink]

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New post 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

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Re: DS-3 digit n [#permalink]

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

5.3.2 or any variation of this will still be less than 550

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Re: DS-3 digit n   [#permalink] 10 Oct 2008, 14:42
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