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A person riding a bike crossing a bridge with a speed of 54 Km/hr. What is the length of the bridge, if he takes 4 min to cross the bridge?

A) 3600 m
B) 2800 m
C) 3500 m
D) 4500 m

Correct Answer:

A) 3600 m

Description for Correct answer:

Length of bridge = Distance travelled by the person in 4 min

= speed X time

Speed = 54 Km/hr = \( \Large 54 \times \frac{5}{18}\) = 3 X 5 = 15 m/s.

Time =4 min = 4 X 60 = 240 s

Required length = 15 X 240 = 3600 m.

Part of solved Time and Distance questions and answers : >> Aptitude >> Time and Distance

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