if the input to t-flipflop is 100 hz signal

Question

If  the input to T-flipflop is 100 Hz signal, the final output of the three T-flipflops in cascade is ?

Ans. The  final  output  of  the  three  T-flip-flops in cascade is 12.5 Hz if  the  input  to  T-flip-flop  is  100  Hz  signal.

The last output of the three T-flip-flops in cascade is as:

T = Frequency/2^N

= 100/2³

= 12.5 Hz.