A 270m long train running at the speed of 120kmph crosses another train running in opposite direction at the speed of 80kmph in 9 second. What is the length of the other train?
Choose the correct choice from the following answers
A) 150m
B) 230m
C) 290m
D) 310m
E) 420m
Relative speed = 120+80= 
<gadget id="calculator">120+80</gadget>
<output>200</output>
200*5/18= 500/9 m/s   Let the length of the other train be x meters   x+270/9 = 500/9   x = 230m   Answer is 230m
<result>B</result>
A 270m long train running at the speed of 120kmph crosses another train running in opposite direction at the speed of 80kmph in 9 second. What is the length of the other train?