50 tuning forks are arranged in increasing order of their frequencies such that each gives 4 beats/sec with its previous tuning fork. If the frequency of the last fork is octave of the first, then the frequency of the first tuning fork is

Eleven tuning forks are arranged in the ascending order of frequencies .Each tuning fork gives 4 beats per second with the preceding fork. If the frequency of the last fork is twice that of the first , find the frequency of the first , last and fifth fork.

A set of 11 tuning forks is kept in ascending order of frequencies. Each tuning fork gives 5 beats per second with the previous one. If the frequency of the last fork is 1.5 times that of the first , find the frequency of the first and last fork.

A set of 8 tuning forks is arranged in a series of increasing order of frequencies. Each fork gives 4 beats per second with the preceeding one and the last fork is an octave of the first .Find the frequency of the first fork.

A set of 8 tuning forks is arranged in a series of increasing order of frequencies .Each fork gives 4 beats per second with the next one and the frequency of last fork is twice that of the first. Calculate the frequencies of the first and the last fork.

Forty one tuning forks are arranged in increasing order of frequencies such that every fork gives 5 beats with the next. The last fork has a frequency that is double the frequency of the first fork. The frequency of the first fork is

A set of 24 tuning forks are so arranged that each gives 6 beats per second with the previous one. If the frequency of the last tuning fork is double that of the first, frequency of the second tuning fork is