# A kiron lives for 1 week and changes into a liron, a liron lives for one week and changes into a miron. A week later the miron divides into one kiron and one liron. What is the total number of...

A kiron lives for 1 week and changes into a liron, a liron lives for one week and changes into a miron. A week later the miron divides into one kiron and one liron.

What is the total number of cells in week 10?

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### 1 Answer

A kiron lives for 1 week and changes into a liron, a liron lives for one week and changes into a miron. A week later the miron divides into one kiron and one liron.

At the start of week 1, there is one kiron.

At the end of week 1, there is one liron.

At the end of week 2, there is one miron.

At the end of week 3, there is one kiron and one liron.

At the end of week 4, there is one liron and one miron.

At the end of week 5, there is one miron, one kiron and one liron.

At the end of week 6, there is one kiron, two lirons and one miron.

At the end of week 7, there is one kiron, two lirons and two mirons.

At the end of week 8, there are two kirons, three lirons and two mirons.

At the end of week 9, there are two kirons, four lirons and three mirons.

**In week 10 there are two kirons, three mirons and fours lirons.**