The correct option is (d) 18.
The number if dogs attended the inter-species dance party is 18.
<h3>What is combination?</h3>
A combination is an arithmetical technique for determining the number of different arrangements in a set of items in which the order of a selection is irrelevant. You can choose the items in just about any order in combinations.
- Permutations and combinations are often confused. In permutations, however, the sequence of the selected items is critical.
- For instance, the arrangements ab as well as ba are equal in combinations (regarded like one arrangement), but different in permutations.
- Combinations are analyzed in combinatorics, but they are also used in other fields such as mathematics and finance.
Now, as per the given question.
If every cat danced with a 3 dogs, the total would be;
3 x 12 = 36 cat and dogs pairs.
Even so, every dogs just danced with 2 cat, implying that there had to be a mix-up. Then,
Number of dogs = 36/2 = 18
Therefore, the total number of dogs present in the inter-species dance party are 18.
To know more about the combinations, here
brainly.com/question/295961
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