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Luas = 184,6 ha
Pohon jati = 25 %
Ditanyakan =
a. Luas pohon jati
b. Luas pohon pinus dan eukaliptus
Jawab=
a. Luas Jati = 25/100 x 184,6 = 46,15 ha
b. Luas pinus + eukaliptus = 75/100 x 184,6 = 138,45 ha
b). Luas hutan Pinus & eukaliptus = 184,6 ha - 46,15 ha = 138,45 ha