Question 5
A beaver musician always writes lyrics using a diagram. He always begins at “Start”, then follows the arrows to choose the lyrics. The song always finishes at “End”, although reaching “End” need not mean the song finishes immediately.
For example, the diagram above can produce the song “Whoop-de-doo La La La Whoop-de-doo La La La Dum-da-da Dum-da-da Bang Dum-da-da Dum-da-da”.
Consider the following four diagrams.
How many of diagrams 2, 3 and 4 can produce the same lyrics as diagram 1?
For example, the diagram above can produce the song “Whoop-de-doo La La La Whoop-de-doo La La La Dum-da-da Dum-da-da Bang Dum-da-da Dum-da-da”.
Consider the following four diagrams.
How many of diagrams 2, 3 and 4 can produce the same lyrics as diagram 1?