A train of 25 carriages, each of 60 meters length, when an engine also of 60 meters length is running at a speed of 60 kmph. In what time will the train cross a bridge 1.0 km long?
Choose the correct choice from the following answers:	A) 2.5	B) 3	C) 5	D) 7	E) 9
D = 25 * 60 + 1000= 
<gadget id="calculator">25 * 60 + 1000</gadget>
<output>2_500</output>
2500 m   T= 2500/60 * 18/5= 
<gadget id="calculator">2500/60 * 18/5</gadget>
<output>150</output>
150 sec= 2.5 mins   2.5nswer: 2.5
<result>A</result>
A train of 25 carriages, each of 60 meters length, when an engine also of 60 meters length is running at a speed of 60 kmph. In what time will the train cross a bridge 1.0 km long?