gimana caranya jawab cepat

luas lingakaran = 22/7 x 7 x 7 = 154 m^2
volume kerucut= 1/3 x 154 x 8 = 410.667 m^3
volume tabung=  154 x 10 = 1540 m^3
total vol = 1950.667 m^3 = 1950667 L
waktu 1950667 L / 100 L / s = 19506,67 detik = 5,148 jam