In what time will a railway train 70 m long moving at the rate of 36 kmph pass a telegraph post on its way?
Choose the correct option.
A) 5 sec	B) 4 sec	C) 3 sec	D) 7 sec	E) 1 sec
T = 70/36 * 18/5= 
<gadget id="calculator">70/36 * 18/5</gadget>
<output>7</output>
7 sec   Answer: 7 sec
<result>D</result>
In what time will a railway train 70 m long moving at the rate of 36 kmph pass a telegraph post on its way?