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Q.

A drunkard is walking along a straight road. He takes 5 steps forward and 3 steps backward and so on. Each step is 1 m long and takes 1 s. There is a pit on the road 11 m away from the starting point. The drunkard will fall into the pit after

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a

31s

b

21s

c

37s

d

29s

answer is B.

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Detailed Solution

detailed_solution_thumbnail

Last 5 steps he will go at once. So 5 sec he will spend.

Remaining 6 meter he will travel for 3X8 for 24 minutes. 

Because he travels a net distance of 2 m in every 8 seconds.

so total time will be 29 sec.

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A drunkard is walking along a straight road. He takes 5 steps forward and 3 steps backward and so on. Each step is 1 m long and takes 1 s. There is a pit on the road 11 m away from the starting point. The drunkard will fall into the pit after