Brain teaser 2
A drunkard is walking along a straight road. He takes 5 steps forward and 3 steps backwards, followed by 5 steps forward and 3 steps backwards and so on.Each step is 1 meter long and takes 1 second.There is a pit on the road 111meter away from the starting point then drunkard will fall into the pit after how many seconds:---
The answer is 429.
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1 solution
5 m forward followed by 3 m backward = 8 seconds, but only 2 meter.
Then, to reach 106 meter, time needed is 2 1 0 6 x 8 = 4 2 4 seconds. The pit is 5 meter away. Thus, the drunkard will fall after 424 + 5 = 4 2 9 m e t e r