jmc

We write $\lfloor X\rfloor$ to mean the greatest integer less than or equal to $X$; for example $\lfloor 3\frac{1}{2}\rfloor =3$. If $N=\frac{1}{3}$, what is the value of $\lfloor 10N\rfloor +\lfloor 100N\rfloor +\lfloor 1000N\rfloor +\lfloor 10,000N\rfloor$?