Question

A person riding a bike crosses a bridge with a speed of 54 km/h. What is the length of the bridge, if he takes 4 min to cross the bridge ?

Answer 1

Answer:

60

Explanation:

first convert the number in m/s = 54×5÷18 =18 ÷ 54 = 3. 5×3=15 then 15×4=60

Answer 2

Answer:

3.6km

Explanation:

I don't know the explanation.