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Take a number. If it is even, halve it. If it is odd, multiply it by 3 and add 1.

Contributed by StemPy Lab

Try it on paper first. A hint, the key idea and the worked solution are here when you need them.

Take a number. If it is even, halve it. If it is odd, multiply it by $3$ and add $1$ . Repeat until you reach $1$ . How many steps does it take from $6$ ?

Need a reminder? The key ideaShow

Repeat while n is not 1, and use if and else inside the loop.

The worked solution

Have you tried it?

Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, compare your working with the solution.

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