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logic

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krishna2341858's picture
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Joined: 2011-08-28
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1025 - 7 is divisible by

  1. 2
  2. 3
  3. 9
  4. Both (2) and (3)


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Joined: 2012-05-31
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 3 is the ans
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 3 is the ans

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Joined: 2012-06-02
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3
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3

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Joined: 2012-05-31
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 3 only
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 3 only

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Joined: 2011-08-17
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only with 3 ans is option 2
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only with 3

ans is option 2

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Joined: 2011-08-17
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 the last digit will b 93 and
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 the last digit will b 93 and it is divisible by 3 and not by 9.

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Joined: 2011-11-23
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 divisible only by 3
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 divisible only by 3

priya5's picture
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 divisible by 3 oly
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 divisible by 3 oly

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Joined: 2011-09-30
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  1025 = units digit will be
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  1. 1025 = units digit will be 0.
  2. units place of(10^25-7)=3.
  3. all other 24 digits will be 9's.
  4. thus, the sumof the digits of the resultant no will be 24*9+3=219 which is divisible by 3 not by 9.

 the resultant will be divisible by 3 

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 3
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 3

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 3
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 3