<PRE><B>Question 927296</B>
first car distance covered in 2 hours:
s = d/t
d = st
d = 60*2 = 120 km
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speed of second car relative to the first car:
75 - 60 = 15 km/hr
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time taken by the second car to overtake the first car:
t = d/s
t = 120/15
t = 8 hours
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