A cyclist moving at a speed of 20 km/hr crosses a bridge in 2 minutes. What is the length of the bridge?
Answer & explanation
Correct answer: option 3
Speed = \(\frac{Distance }{Time }\)
20 x \(\frac{5 }{18 }\) = \(\frac{\text{Length of the bridge }}{120 }\)
\(\frac{100 }{18 }\) x 120 = Length of the bridge
Length of the bridge = 666.666 m