Number with ones

The first digit of the number is 1, if we move this digit to the end we get a 3 times higher number, which is the number?

Correct answer:

n =  142857

Step-by-step explanation:

$$\begin{gathered} n=142857 \\ m=428571 \\ x=3\cdot n=3\cdot 142857=428571 \\ n=142857=142857 \end{gathered}$$

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Dr Math

prima cifra a unui numar este 1 daca mutam aceasta cifra la sfarsit obtinem un numar de 3 ori mai mare care este numarul?

3 years ago  Like

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