Question

Two identical trains take
3 sec. to pass one another when going in opposite direction. But takes only
2.5 sec, if the speed of one is increased by 50%. The time one would take to pass the other when going in the same direction at their original speed is-
(1) 10 sec.
(2) 12 sec.
(3) 15 sec.
(4) 18 sec.​

Answer 1

Answer:

Answer is = ( 3 ) 15 sec.

Explanation:

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Answer 2

therefore,

Answer is 15 secs (3) .

Answer given above.

Kindly check.

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