A 360 metres long train running at the speed of 120 kmph crosses another train running in opposite direction at the speed of 80 kmph in 9 seconds. What is the length of the other train?
Pick.
A) 220 meter	B) 225 meter	C) 140 meter	D) 235 meter	E) None of these
Explanation:   As trains are running in opposite directions so their relative speed will get added   So, Relative speed = 120 +80= 
<gadget id="calculator">120 +80</gadget>
<output>200</output>
200 kmph= 200*(5/18) = 500/9 m/sec   Let the length of other train is x meter then   x+360 /9=500 /9   =&gt;x+360=500   =&gt;x=140   So the length of the train is 140 meters   Option 140 meter
<result>C</result>
A 360 metres long train running at the speed of 120 kmph crosses another train running in opposite direction at the speed of 80 kmph in 9 seconds. What is the length of the other train?