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Two express trains EMU and DMU cross eac...

Two express trains EMU and DMU cross each other in 15 seconds when they move towards each other . Speed of train EMU and train DMU is 80 km/hr and 64 km/hr respectively . Length of train EMU is 150 metre more than length of train DMU.
`to` Which of the following can be obtained from the above given information .
(i) Time taken by train DMU to cross a man moving in same direction as of train DMU .
(ii) Time taken by train EMU to cross a platform of half of its length.
(iii) Length of train EMU .
(iv) Speed of another train MEMU whose length is equal to average of length of train EMU and DMU .

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