Question

A man running at a speed of 15km/hr crosses a bridge in 3 minutes. What is the length of the bridge?

• A. 1050 m
• B. 750 m
• C. 825 m
• D. 900 m

Answer 1

Answer:

B. 750 m

length of the bridge = speed × time Speed = 15 km/hr = 15 × 5/18 m/s Time = 3 minute = 3 × 60 second Length = 15 × 5/18 × 3 × 60 = 750 m