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# IMO B. What is OA? 1) last digit is 3. For any number to be

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Director
Joined: 01 Apr 2008
Posts: 872
Name: Ronak Amin
Schools: IIM Lucknow (IPMX) - Class of 2014
IMO B. What is OA? 1) last digit is 3. For any number to be [#permalink]

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05 Apr 2009, 02:56
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IMO B. What is OA?
1) last digit is 3. For any number to be divisible by 3 the sum of the digits should be a multiple of 3. Here information is insufficient.

2) x+5 = 6a
=> x = 6a - 5.
=> x/3 = 2a - 5/3 ( => check divisibility by 3 ).
=> there is some remainder
=> x is not divisible by 3 => Sufficient.

mxb908 wrote:
Is the integer x divisible by 3?

(1) the last digit in x is 3

(2) x+5 is divisible by 6

Please let me know as to what the answer for the above question should be and what methodology we should follow.

thanks,
Manager
Joined: 03 Jul 2009
Posts: 103
Location: Brazil
Re: Data Sufficiency Question from veritas exam [#permalink]

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18 Jul 2009, 13:21
1) I did the same
2) I picked numbers
If x+5 is divisible by 6, the this number can be

If 12, x = 7
If 18, x = 13

But I confess your approach was safer.
Re: Data Sufficiency Question from veritas exam   [#permalink] 18 Jul 2009, 13:21
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# IMO B. What is OA? 1) last digit is 3. For any number to be

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