An echo is heard after 5 seconds of the production of sound which moves with a speed of 340 m/s. What Is the distance of the mountain from the source of sound which produced the echo?

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Q: (CDS-II/2019)
An echo is heard after 5 seconds of the production of sound which moves with a speed of 340 m/s. What Is the distance of the mountain from the source of sound which produced the echo?
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question_subject: 

Geography

question_exam: 

CDS-II

stats: 

0,13,22,8,13,5,9

keywords: 

{'distance': [0, 3, 3, 3], 'echo': [0, 0, 1, 2], 'km': [0, 0, 2, 1], 'speed': [0, 1, 2, 0], 'sound': [4, 3, 10, 15], 'mountain': [1, 0, 0, 0], 'seconds': [3, 3, 8, 6]}