Tolong jawab no 6 yg benar

Dik = fD = 297 Hz
fD : fE = 27/30 = 9/10
Dit = fE = ?
Peny=
[tex] \frac{fd}{fe} = \frac{9}{10} \\ \\ \frac{297}{fe} = \frac{9}{10} \\ \\ fe = \frac{297 \times 10}{9} \\ \\ fe = 330[/tex]

Jadi frekuensi nada E = 330 Hz