Two trains are moving in opposite directions at 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km respectively. The time taken by the slower train to cross the faster train in seconds is ?
Choose the correct choice from the following answers:	A) 42 sec	B) 44 sec	C) 46 sec	D) 48 sec	E) 50 sec
Explanation:   Relative speed = 60 + 90= 
<gadget id="calculator">60 + 90</gadget>
<output>150</output>
150 km/hr.= 150 x 5/18 = 125/3 m/sec.   Distance covered = 1.10 + 0.9= 
<gadget id="calculator">1.10 + 0.9</gadget>
<output>2</output>
2 km= 2000 m.   Required time = 2000 x 3/125 = 48 sec.   ANSWER IS 48 sec
<result>D</result>
Two trains are moving in opposite directions at 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km respectively. The time taken by the slower train to cross the faster train in seconds is ?