The (7-11-13) number fact...

the 7-11-13 numbers.
write down any three digit number.
such as 456 , 682 , etc.
multiply the number by( 7*11*13 )
and you will find answer as two times that number.
ex. 543*7*11*13=543543

Get Your Birthday Date With Calculator....

1. Add 18 to your birth month
2. Multiply by 25
3. Subtract 333
4. Multiply by 8
5. Subtract 554
6. Divide by 2
7. Add your birth date
8. Multiply by 5
9. Add 692
10. Multiply by 20
11. Add only the last two digits of your birth year
12. Subtract 32940 to get your birthday!

Note:The answer's format is: month/day/year.

Interesting fact of mathematic........

A, B, C goes to hotel, pays 30rs for bill.
Each pays 10rs.
Server gives back 5 rs. saying the bill amount is 25 only.
They take 1 rs. each and gives 2 rs. as tips to server.
Now if we calculate, each person gave 10 and got back 1rs.
So each has spent 9 rs.
a total amount of 27 rs. + 2 rs. tips = 29rs. Where is the 1 Rs.?

FACT OF AUG-2009
DIS AUGUST HAS
5 SATURDAYS
5 SUNDAYS
5 MONDAYS
All In 1 Month.
It Happens Once In 823 Years.

An interesting fact about "FEBRUARY 2010"

February 2010......

4 - MONDAY
4 - TUESDAY
4 - WEDDAY
4 - THURSDAY
4 - FRIDAY
4 - SATDAY
4 - SUNDAY
all in a row check the calendar format
.It comes every 11year..

"KAPREKAR'S CONSTANT" number ( 6174 )

Start with any 4 digit no.
in which not all digits are alike.
Arrange them in descending order.
reverse them to make a new no.
and subtract the new no. from the first no..
If you keep repeating this process with the remainders ,you'll( in 8 or less steps)
arrive at number (6174).
Remember to preserve the zeros.
For example, choose 3524:
 5432 – 2345 = 3087
 8730 – 0378 = 8352
8532 – 2358 = 6174 !!!

note:D.R.Kaprekar is a great indian mathematician.

Amazing number's spelling

Amazing numbers (1) & (40).
spelling of number 1 is ONE.
this is the only one word wich is written by reverse alphabetic order.
spelling of number 40 is FORTY
this is the only one word wich is written by alphabetic order.!!!!