Two men, A and B, run a 4 km race in a circular course of 1/4 km. If their speeds are in the ratio of 5 : 4 , how often does the winner pass the other?
A
Thrice
B
Four times
C
Once
D
Twice
Correct Answer: Thrice
Speed of A and B in the ratio = 5 :4 We know 14km = (14×1000)m = 250m When, A covers = 5×250 = 1250mB coveres = 4×250 = 1000m.'. A gains = (125 - 1000) = 250 mWhen, A covers 4000m The winner Pass the other 40001250m = 3.2 mThrice