A person reduces his speed by 27.27 he takes 66 minutes
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40 min
Explanation:
Let Say Speed = 100V m/min
Reduced Speed = 100V - (27.27/100)100V = 72.73V
Time Taken = 66 Min
Distance = 72.73V * 66
he increases his speed by 20%
=> incraesed Speed = 100V + (20/100)100V = 120V
Time Taken = 72.73V * 66/120V
= 40 min
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