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 choice from the following answers.
A) 8 sec
B) 1 sec
C) 9 sec
D) 7 sec
E) 2 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?