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Question

A drunkard takes a step of 1m in 1s. He takes 5 steps forward and 3 steps backward and so on. The time taken by him to fall in a pit 13m away from the start is :

134203_665a858ba8c844d6827d81f314c8960b.jpg

A
26s
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B
31s
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C
37s
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D
41s
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Solution

The correct option is C 37s
The man takes 5 steps forward and 3 steps backwards, distance from pit is 13 meters and distance of 1 step is 1 meter.
5m2m7m4m9m6m11m8m13m

Each step needs 8 sec, 5 in forward direction and 3 in backward direction.
Now, he reaches the distance of 8 m in 32 sec.
Thus, he reaches the distance of 13 m in 32+5=37 sec.

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