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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 330 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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