  Denote by $\nu_p(G)$ the number of Sylow $p$-subgroups of $G$. It is not
difficult to see that $\nu_p(H)\leq\nu_p(G)$ for $H\leq G$, however $\nu_p(H)$
does not divide $\nu_p(G)$ in general. In this paper we reduce the question
whether $\nu_p(H)$ divides $\nu_p(G)$ for every $H\leq G$ to almost simple
groups. This result substantially generalizes the previous result by G. Navarro
and also provides an alternative proof for the Navarro theorem.
