I am unable to pick the right option from the below
A divide by 78 counter can be realized using? a) 6 number of mod 13 counters b) 13 number of mod 6 counters c) one mod-13 counter followed by one mod 6 counter d) 13 number of mod-13 counters
I know a divide by 78 counter has 78 states so I decided that answer cannot be C because a mod-13 counter has 13 states and mod-6 has 6 states total making up only 20 states and then the next option is D that has 13 *13 = 169 states more than required. I think it must be a or b and the is b according to the book I solved but my question is why it can't be a?
mod-6 counter has 6 states so total 13*6 = 78 . this was the explanation but mod-13 counter has 13 states so total 6*13 = 78 both are same
Iam unable to find out the reason why the answer is B. kindly help me with this. Thanks