a road runs between two parallel rows of building. A biker moves with a velocity of 36 km/hr sounds the horn. He hears the echo 1s after he sounded the horn. Find the distance between the two rows of building. When will he hear the second echo?

Asked by Madhurima | 29th Dec, 2013, 06:09: AM

Expert Answer:

Answered by  | 30th Dec, 2013, 11:26: AM

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