How Old is Your Cat?

Posted on August 31, 2017 by Administrator Posted in Computer Science, Python - Intermediate, Python Challenges, Solved Challenges

In this challenge we are going to create a cat’s age convertor find out how old a cat is in “human years”. This is very useful to understand more about cats and the care they need and to find out at what stage of life a cat is.
To convert the age of a cat in human years you have to do the following:

Year 1 counts for 15 Human Years
Year 2 counts for 9 Human Years
Thereafter each year counts for 4 Human Years

For example:

A 1 year old cat is 15 Human Years old,
A 2 years old cat is 15 + 9 = 24 Human Years old,
A 3 years old cat is 15 + 9 + 4 = 28 Human Years old,
A 4 years old cat is 15 + 9 + 4 + 4 = 32 Human Years old,
A 5 years old cat is 15 + 9 + 4 + 4 + 4= 36 Human Years old,
A 10 years old cat is 15 + 9 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 = 56 Human Years old.

You can check the full cat’s age conversion chart at the bottom of this post.

Your Challenge

Complete the following code to ask the user to input the age of a cat in years and return the equivalent in human years.

Extension #1

Amend your code so that it also works for cats under 1 year old. In this case you will have to ask for the cat’s age in months and use the conversion chart below (At the bottom of this post) to return the cat’s age in human years.

Extension #2

The stages of life of a cat are as follows:

Kitten – from birth to 6 months,
Junior – from 7 months to 2 years,
Prime – from 3 years to 6 years,
Mature – from 7 years to 10 years,
Senior – from 11 years to 14 years,
Geriatic – from 15 years above.

Extend your code to tell the end-user what stage of life their cat’s age is corresponding to.

Extension #3

Create another program where the user enters their age in human years and the program tells the user how old they would be if they were a cat!

Cat’s age conversion chart:

Life Stage	Cat years	Human years
Kitten	2 months	9 to 10 months
	3 months	2 to 3 years
	4 months	5 to 6 years
	5 months	8 to 9 years
	6 months	10 years
Junior	8 months	13 years
	1 year	15 years
	2 years	24 years
Prime	3 years	28 years
	4 years	32 years
	5 years	36 years
	6 years	40 years
Mature	7 years	44 years
	8 years	48 years
	9 years	52 years
	10 years	56 years
Senior	11 years	60 years
	12 years	64 years
	13 years	68 years
	14 years	72 years
Geriatric	15 years	76 years
	16 years	80 years
	17 years	84 years
	18 years	88 years
	19 years	92 years
	20 years	96 years
	21 years and above	100 years