Question 8
How many solutions does the equation
$$
\lfloor \frac{x}{20} \rfloor = \lfloor \frac{x}{17} \rfloor
$$
have in the set of positive integers?
Here $\lfloor a \rfloor$ denotes the greatest integer that is less than or equal to $a$.
(Karl Czakler)
$$
\lfloor \frac{x}{20} \rfloor = \lfloor \frac{x}{17} \rfloor
$$
have in the set of positive integers?
Here $\lfloor a \rfloor$ denotes the greatest integer that is less than or equal to $a$.
(Karl Czakler)