Problem of the day !
We have started one more interesting feature of the blog
I will be posting problem of the day , and the best answer will be highly appreciated
If you win problem of the day for more than 4 times in a week then I will send you a mathematics very interesting E-Book
So here is Question 1 )
QUESTION 1 )
How many digits does the number 21000 contain?
You have to give solution of your answer too