Search found 2 matches
- Wed Feb 02, 2011 4:10 pm
- Forum: Secondary: Solved
- Topic: Dhaka Secondary (Higher Secondary) 2011/5
- Replies: 9
- Views: 7251
Re: Dhaka Secondary (Higher Secondary) 2011/5
What about all real numbers 'R' ?
- Mon Jan 31, 2011 7:56 pm
- Forum: Secondary: Solved
- Topic: Dhaka Secondary 2011/8
- Replies: 3
- Views: 4720
Re: Dhaka Secondary 2011/8
Let the number be ABCCBA As BCCB=0 (mod 4) therefore, CB=0 (mod 4) Again, ABCCBA=0 (mod 6) so A+B+C+C+B+A=0 (mod 3) and A is even Or, C+B+A=0 (mod 3) we get, CBA=0 (mod 3) As A is even, it may take values as 2,4,6,8. (we can't consider 0 here.if it does,the numbers of digit will become 4) Now we'll ...