A train overtakes two persons walking along a railway track. The first – McqOptions

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1.	A train overtakes two persons walking along a railway track. The first one walks at 4.5 km/hr. The other one walks at 5.4 km/hr. The train needs 8.4 and 8.5 seconds respectively to overtake them. What is the speed of the train if both the persons are
A.	72 km/hr
B.	66 km/hr
C.	81 km/hr
D.	78 km/hr
Answer» D. 78 km/hr

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