Question

5 Digits Number? What 5-digit number has the following features:
If we put the numeral 1 at the beginning, we get a number three times smaller than if we put the numeral 1 at the end of the number.

Answer 1

Step-by-step explanation:

If we put numeral 1 in front of the number, we get a number three times smaller, than if we put the numeral 1 behind this number. Using an easy equation: 3(x+100000) = 10x+1 we find out that the number is 42857.