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A drunkard is walking along a straight road. He takes5 steps forward and 3 steps backward and so on. Eachstep is 1 m long and takes 1 s. There is a pit on the road11 m away from the starting point. The drunkard willfall into the pit after(a) 21s(c) 31 s(b) 29 s(d) 37 st |
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Answer» For 8 total steps it takes 8 seconds,and moves in total 2 steps forward (2 m) Therfore,3*2 m = 6 m At 3rd cycle Time Elapsed 24 s After walking 5 m forward, he takes 5 s more.It becomes 11 m. Time = 24 + 5 = 29m thanks sonam |
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