A train 420 m long, running with a speed of 63 km/hr will pass a tree in?
Select
A) 15 B) 16 C) 17 D) 20 E) 24
Speed = 63 * 5/18 = 35/2 m/sec   Time taken = 420 * 2/35= 
<gadget id="calculator">420 * 2/35</gadget>
<output>24</output>
24 sec   Answer: Option 24
<result>E</result>
A train 420 m long, running with a speed of 63 km/hr will pass a tree in?