Resposta :
[tex]a + p = 25 \\ a = 5 + p \\ \\ a + p = 25 \\ 5 + + p + p = 25 \\ 2p = 20 \\ \boxed{\boxed{p = 10 \: anos}} \\ \boxed{\boxed{a = 15 \: anos}}[/tex]
[tex]a + p = 25 \\ a = 5 + p \\ \\ a + p = 25 \\ 5 + + p + p = 25 \\ 2p = 20 \\ \boxed{\boxed{p = 10 \: anos}} \\ \boxed{\boxed{a = 15 \: anos}}[/tex]