A train 180 m long passed a pole in 10 sec. How long will it take to pass a platform 800 m long?
Pick:
A) 80
B) 89
C) 54
D) 67
E) 56
Speed = 180/10= 
<gadget id="calculator">180/10</gadget>
<output>18</output>
18 m/sec.   Required time= (180+ 800)/18 = 54 sec.   Answer: Option 54
<result>C</result>
A train 180 m long passed a pole in 10 sec. How long will it take to pass a platform 800 m long?