Use induction on $n$ to prove that for all integers $n\geq 4$, postage of $n$ cents can be realized using only $2$ cent and $5$ cent stamps.
I thinks it is little bit different. How can I use induction to this kind of problem?
Use induction on $n$ to prove that for all integers $n\geq 4$, postage of $n$ cents can be realized using only $2$ cent and $5$ cent stamps.
I thinks it is little bit different. How can I use induction to this kind of problem?