The length of a train and that of a platform are equal. If with a speed of 90 k/hr, the train crosses the platform in one minute, then the length of the train (in meters) is:	Choose the correct choice from the following options:  A) 700  B) 780  C) 760  D) 750  E) 459
Speed = [90 * 5/18] m/sec = 25 m/sec; Time = 1 min. = 60 sec.   Let the length of the train and that of the platform be x meters.   Then, 2x/60 = 25 è x = 25 * 60 / 2= 
<gadget id="calculator">25 * 60 / 2</gadget>
<output>750</output>
750   Answer: Option 750
<result>D</result>
The length of a train and that of a platform are equal. If with a speed of 90 k/hr, the train crosses the platform in one minute, then the length of the train (in meters) is: