1. 13 hamsters
2. 66 legs
1. From the question, we are told that a hamster has 4 legs
Given that there are a total of 52 legs, so to find the total number of hamsters present, we simply go on to divide the number of total legs by the number of legs a hamster has
Mathematically; that would be 52/4 = 13 hamsters
2. Here, we want to the total number of legs present in a house where we have 4 bettles , 5 hamsters and 11 birds
1 bettle has 6 legs
so 4 bettles will have 4 * 6 = 24 legs
1 hamster has 4 legs
so 5 hamsters will have 5 * 4 = 20 legs
1 bird has two legs
so 11 birds will have 11 * 2 = 22 legs
So the total number of legs present in the house will be the addition of all the legs
That will be 24 + 20 + 22 = 66 legs
3. Here, we have a total of 32 legs , we now want to find the different combination of all the animals present
What is important here is that at any point, for any combination, the total number of legs must be eual to exactly 32
We proceed as follows;
1 bird
1 bettle
6 hamsters
Another can be;
2 birds
2 bettles
4 hamsters
Another combination can be
3 hamsters
3 bettles
1 bird
and so on