Cheap Charlie likes to smoke cigars.
He cannot afford cigars so he puts five stubs (which he finds) together to make one full cigar.
One day Charlie was lucky to get 25 stubs.
How many cigars could he smoke?
For a bonus point; how many cigars could he have smoked if he had only found 20 stubs?
(In reply to Solution To Part I
by K Sengupta)
From 20 stubs Charlie made and smoked 20/5 = 4 cigars.
The four cigars when smoked completely generated 4 stubs, which is insufficient to manufacture one cigar.
Thus, Charlie could have smoked 4 cigars if he had only found 20 stubs.