A train 360 m long runs with a speed of 45 km/hr. What time will it take to pass a platform of 140 m long?	Choose one.
A) 38 sec  B) 35 sec  C) 44 sec  D) 40 sec  E) 48 sec
train length= 360m   platform length = 140m   time= ?   length = speed * time   total length =360+140= 
<gadget id="calculator">360+140</gadget>
<output>500</output>
500m   speed= 45 km/hr =45 * (5/18) (m/sec) =12.5 m/sec   time = length/speed = 500/12.5= 
<gadget id="calculator">500/12.5</gadget>
<output>40</output>
40sec   ANSWER:40 sec
<result>D</result>
A train 360 m long runs with a speed of 45 km/hr. What time will it take to pass a platform of 140 m long?