Google
 

Monday, February 4, 2008

5 Digit Number

What 5-digit number has the following features? If we put numeral 1 at the beginning, we get a number three times smaller, than if we gave the numeral 1 behind this number.

Solution: Using an easy equation: 3(x+100000) = 10x+1 we find out that the number is 42857.

No comments: