[tex]x\to lungimea \ drumului \\\\ \frac{1}{4} \ din \ x \to \frac{1}{4}*x = \frac{x}{4} -prima \ zi \\\\\\ x^{(4}-\frac{x}{4}=\frac{4x-x}{4} \to \frac{3x}{4} -restul \\\\ \frac{1}{2} \ din \ \frac{3x}{4} = \frac{1}{2} * \frac{3x}{4} \to \frac{3x}{8} - a \ doua \ zi \\\\ \frac{3x}{4}^{(2} -\frac{3x}{8}= \frac{6x-3x}{8} \to \frac{3x}{8} -noul \ rest \\\\ \frac{3x}{8}=25 \\\\\\ x=\frac{8*25}{3} \\\\ x=\frac{200}{3} \\\\ \boxed{x=66,6}[/tex]
