|
|
|
|
|
| Author |
Message |
![[Post New]](/templates/default/images/icon_minipost_new.gif) 13 Jan 2008 10:14:22 IST
|
|
|
ansewr is correct sinjan........
You have made a fundamental mistake.......
If 0 is filled in the first digit....then it has no meaning.....that is it will no longer be a 4 digit number...it becomes a 3 digit value
so except 0...all 4 digits can take up the 1st place
So no of ways of filling the first place is 4
Now no of ways of filling 2nd place is also 4 (as 0 is now included)
3rd place can be filled in 3 ways
Last digit can be filled in 2 ways
So no of ways 4*4*3*2 = 96 ways
Hope you got it
|
__________________________________________________________________________________________________________
From J.R.R. Tolkien's 'The Lord of the Rings':
All that is gold does not glitter
Not all who wander are lost
The old that is strong does not wither,
Deep roots are not reached by frost.
From ashes a fire shall be woken
From shadows a light shall spring
Renewed shall be blade that's broken
The crown less again shall be king. |
this reply: 10 points
(with 2 
in 2 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
|
|
|
|
|
|
|
Moderation Team
![[Up]](/templates/default/images/icon_up.gif "[Up]"){kind=icon}
