III Time From secondssecondsseconds to secondssecondsseconds and minutesminutesminutes:s=1667s = 1667s=1667m=166760=27.7833ˉm = \frac{1667}{60} = 27.783\text{={3}}m=601667=27.7833ˉ78.33100=s60\frac{78.33}{100} = \frac{s}{60}10078.33=60s60×78.83100≈47\frac{60 \times 78.83}{100} \approx 4710060×78.83≈47m=27m = 27m=27, s≈47s \approx 47s≈47