speed and distance
Level
pending
A person climbs up a pole of 90 meter high, in every minute he climbs 15 meter but slips down 12 meters. How much time he will take to reach at the top:
30 minutes
24 minutes
26 minutes
29 minutes
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1 solution
He/she climbs 75 meters in 25 minutes with climbing 15 meters and slipping down 12 meters in a minute.Then in 26th minute he/she climbs 15 meters and reachs at the top