A theif runs with a uniform speed of 10m/min. After one minute a policeman runs the theif to catch him. He goes with a speed by100m/min in the first minute and increases speed by 10m/min every succeeding minute. After how many minutes the policeman will catch the theif?
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then
n-6)( n-3) =0
n= 6
thus he took 6 minutes to catch the thief
n-6)( n-3) =0
n= 6
thus he took 6 minutes to catch the thief
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