120/90 = 1hour 20minutes , with no wind .
90 seconds
45 hours.
56
2 hours 15 minutes
A long time. Generally you should be doing situps "until failure."
He didn't do situps, silly!
90 days.
the prediction is about 90 ears
90 minutes
90 days
It is: 153/90 = 1.7 hours
It would depend on your speed
60 to 90 days
It takes at most 90 minutes
90 months ... sorry!
90 hours of walking.