Question

Two trains running in opposite directions cross a man standing on the platform in 27 seconds and 17 seconds respectively and they cross each other in 23 seconds. what is the ratio of their speeds ?

Answer 1

Answer:

RATIO IS:-3:2

Step-by-step explanation:

Let the speeds of the two trains be xm/sec and y m/sec respectively.

Then, length of the first train = 27xmetres,

and length of the second train = 17ymetres.

27x + 17y= 23x+ y

 27x + 17y = 23x + 23y

 4x = 6y

x=3.y2

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Answer 2

Answer:

Let the speeds of the two trains be xm/sec and y m/sec respectively.

Then, length of the first train = 27xmetres,

and length of the second train = 17ymetres.

27x + 17y= 23x+ y

 27x + 17y = 23x + 23y

 4x = 6y

x=3.y2

•••Thus ratio is 3:2•••

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