Question
Solve the following for $x$, where $|x|$ is modulus function, $[x]$ is the greatest integer function, $\{x\}$ is a fractional part function.

$\left[\frac{x}{2}\right]+\left[\frac{x}{3}\right]=\frac{5 x}{6}$

Answer

$\left[\frac{x}{2}\right]+\left[\frac{x}{3}\right]=\frac{5 x}{6}$
L.H.S. = an integer
R.H.S. $=$ an integer
$\therefore \mathrm{x}=6 \mathrm{k}$, where $\mathrm{k}$ is an integer

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