Question

daca la un nr. adunam jumatatea sa ,sfertul sau,optimea sa si 4 obtinem 34 aflati nr

Answer 1

$a+ \frac{a}{2} + \frac{a}{4} + \frac{a}{8} +4=34 aducem .la.acelasi.numitor.comun \\ 8a/8+4a/8+2a/8+a/8+32/8=272/8 \\ 15a=272-32 \\ a=240:15 \\ a=16$