BdMO National 2012: Primary 4
Problem 4:
Write a number in a paper and hold the paper upside down. If what you get is exactly same as the number before rotation then that number is called beautiful. Example: $986$ is a beautiful number. Find out the largest $5$ digit beautiful number.
Write a number in a paper and hold the paper upside down. If what you get is exactly same as the number before rotation then that number is called beautiful. Example: $986$ is a beautiful number. Find out the largest $5$ digit beautiful number.
Every logical solution to a problem has its own beauty.
(Important: Please make sure that you have read about the Rules, Posting Permissions and Forum Language)
(Important: Please make sure that you have read about the Rules, Posting Permissions and Forum Language)
- nafistiham
- Posts:829
- Joined:Mon Oct 17, 2011 3:56 pm
- Location:24.758613,90.400161
- Contact:
Re: BdMO National 2012: Primary 4
\[\sum_{k=0}^{n-1}e^{\frac{2 \pi i k}{n}}=0\]
Using $L^AT_EX$ and following the rules of the forum are very easy but really important, too.Please co-operate.
Using $L^AT_EX$ and following the rules of the forum are very easy but really important, too.Please co-operate.
Re: BdMO National 2012: Primary 4
Vhaia,eta 98886 hobe naki ?ami try korsi amar kache thik lagtase.
Re: BdMO National 2012: Primary 4
@famim2011: $98886$ is also a beautiful, but, it's not the largest. $99866$ is the largest.
Re: BdMO National 2012: Primary 4
Thanks,soumitra.Ami eta somadhan korsi.ami shudu jante cheye chilam je 98886 beautiful naki.
-
- Posts:2
- Joined:Wed May 22, 2013 3:57 pm
Re: BdMO National 2012: Primary 4
thanks to all, yes it is......................99866
- atiab jobayer
- Posts:23
- Joined:Thu Dec 19, 2013 7:40 pm
Re: BdMO National 2012: Primary 4
Yes,you are rightsowmitra wrote:@famim2011: $98886$ is also a beautiful, but, it's not the largest. $99866$ is the largest.
math champion
Re: BdMO National 2012: Primary 4
the number is 99866