The length of a train and that of a platform are equal. If with a speed of 72 k/hr, the train crosses the platform in one minute, then the length of the train (in meters) is?  Choose the correct choice
A) 600
B) 799
C) 719
D) 750
E) 712
Speed = [72 * 5/18] m/sec = 20 m/sec; Time = 1 min. = 60 sec.   Let the length of the train and that of the platform be x meters.   Then, 2x/60 = 20 Ã¨ x = 20 * 60 / 2= 
<gadget id="calculator">20 * 60 / 2</gadget>
<output>600</output>
600   600nswer: 600
<result>A</result>
The length of a train and that of a platform are equal. If with a speed of 72 k/hr, the train crosses the platform in one minute, then the length of the train (in meters) is?