11 m away from the starting point. The drunkard will fall into the pit after
(a)29s (b)21s (c) 37s (d)31s
He takes 5 steps forward and 3 steps backward. And each step is 1m long. Therefore in 8 steps, he covers 2m. and in another 8 steps, he covers 2m. then 6m covers in 24 steps . And in another 5 steps, he fall into a pit. therefore it covers 24+5=29m. since each metre covers in 1 second. therefore he takes 29 seconds.