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shagunbanthia
A cyclist riding in fog overtakes a man walking at the speed of 3 km/hr. If the man could see the cyclist for 4 minutes an upto a distance of 100m, what is the speed of the cyclist in km/hr?

(a) 1.5
(b) 2.5
(c) 4.5
(d) 5
(e) 6


distance =100m = 1/10Km
time =4 minutes =1/15 hr
rate = rate of cyclist(x) -rate of walking = x-3 kmph

distance/speed=time

(1/10)/ (x-3) = 1/15
solving we get
x=4.5 kmph

Ans C
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shagunbanthia
A cyclist riding in fog overtakes a man walking at the speed of 3 km/hr. If the man could see the cyclist for 4 minutes an upto a distance of 100m, what is the speed of the cyclist in km/hr?

(a) 1.5
(b) 2.5
(c) 4.5
(d) 5
(e) 6

let x=speed of cyclist
(x-3)(1/15 hr)=1/10 km
x=4.5 km/hr
C
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