A road runs between two parallel rows of buildings. A motorist moving with speed of 36 km/h sounds the horn. He hears the echo one second after he sounds the horn. He hears the echo one second after he sounded the horn. If speed of sound is 330 m/s then distance between two rows of buildings is :

Options

A. 330 m
B. ` 2 sqrt( (165)^(2) - (5)^(2) )` m
C. 165 m
D. `sqrt((165)^(2) - (5)^(2))` m

Answer

B