A man walking at a rate of 10km/hr crosses a bridge in 3 minutes. The length of the bridge is?
Choose the most appropriate option: A) 500 B) 650 C) 250 D) 111 E) 236

Rationale: "speed = 10 * 5 / 18 = 50 / 18 m / sec distance covered in 5 minutes = 50 / 18 * 5 * 60 = 500 m answer is a"
Answer: A