A man riding a bike crosses a bridge in 5 minutes when riding at a speed of 15 km/hr. The length of the bridge is
Answer & explanation
Correct answer: option 3
Speed = \(\frac{ Distance}{ Time}\)
15 x \(\frac{5 }{18}\) = \(\frac{\text{ Length of the bridge}}{\text{5 × 60}}\)
\(\frac{25 }{6}\) × 300 = Length of the bridge
Length of the bridge = 1250 m