Step 1:

Determine the number of flip flop needed

Flip flop required are

$2^n ≥ N$

Mod 5 hence N=5

$\therefore 2^n \underline{\gt} N \\ \therefore 2^n \underline{\gt} 5 \\ N=3 \hspace{0.2cm} \text{i.e. 3 flip flop are required}$

Step 2:

Type of flip flop to be used: JK flip flop …