270 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 ?
A) 230 mB) 240 mC) 260 mD) 320 m
Answer: A) 230 m
Explanation:
Relative speed = (120 + 80) km/hr
=
Let the length of the other train be x metres.
Then,
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