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A set of tuning forks is arranged in asc...

A set of tuning forks is arranged in ascending order of frequencies each tuning fork gives `5 beats/s` with the preceding one. If frequency of the first tuning fork is `100 Hz` and the last fork is `150 Hz`, then the number of tuning forks arranged will be

A

9

B

10

C

11

D

12

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