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is 0 divisible by all the numbers??

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Joined: 20 May 2008
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Kudos [?]: 5 [0], given: 1

is 0 divisible by all the numbers?? [#permalink] New post 09 Feb 2009, 23:27
Is the number x is divisible by 9.
1. The number x can be obtained by taking the difference between a number and
another one obtained by reversing the digits.
2. The sum of the digits of x is divisible by 9.
(A)
(B)
(C)
(D)
(E)


- Vishal
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Re: is 0 divisible by all the numbers?? [#permalink] New post 09 Feb 2009, 23:44
LoyalWater wrote:
Is the number x is divisible by 9.
1. The number x can be obtained by taking the difference between a number and
another one obtained by reversing the digits.
2. The sum of the digits of x is divisible by 9.
(A)
(B)
(C)
(D)
(E)


- Vishal



It should be D

1) ab is the number and ba is reverse number

10a+b -( 10b+a)= 9(a-b) clearly divisble by 9
Sufficient

2) say abc is the number

given a+b+c =9k
100a+10b+c = 99a+9b+(a+b+c) = 99a+9b+9k -->clearly divisible by 9

sufficient

D
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Re: is 0 divisible by all the numbers??   [#permalink] 09 Feb 2009, 23:44
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is 0 divisible by all the numbers??

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