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A road runs midway between two parallel ...

A road runs midway between two parallel rows of buildings. A motorist moving with a speed of 36 Km/h sounds the horn. He hears the echo one second after he has sounded the horn. Then the distance between the two rows of buildings is. (Velocity of sound in air is 3330 m/S)

A

`80sqrt(17)m`

B

`40sqrt(17)`m

C

`30sqrt(10)`m

D

`34sqrt(10)m`

Text Solution

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The correct Answer is:
A
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