A.  200 m

B.  225 m

C.  245 m

D.  250 m

1
Correct Answer :
245 m
Explanation :

Speed = [ 45 x (5/18) ] m/sec = (25/2) m/sec

Time = 30 sec

Let the length of bridge be z metres

Then, (130+z)/30 = 25/2

=> z = 245 m


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