A man is walking at the rate of 9 km/hr crosses a bridge in 15 minutes. The length of the bridge is	Choose the correct choice from the following answers
A) 1000 meters B) 1050 meters C) 2200 meters D) 2250 meters E) none of these

Rationale: "explanation : we need to get the answer in meters . so we will first of change distance from km / hour to meter / sec by multiplying it with 5 / 18 and also change 15 minutes to seconds by multiplying it with 60 . speed = 9 â ˆ — 5 / 18 = 5 / 2 m / sec time = 15 â ˆ — 60 seconds = 900 seconds distance = time â ˆ — speed / distance = 5 / 2 â ˆ — 900 = 2250 meter option d"
Answer: D