Question

Example of a subset of a set that's contains 4element

Answer 1

Answer on Question #68807 – Math – Discrete Mathematics

Question

Example of a subset of a set that contains 4 elements

Solution

The set $B$ consists of all the numbers from 1 to 21:

$$B = \{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21\}$$

The subset $C$ consists of the numbers from 1 to 21 that are divisible by 5:

$$C = \{5, 10, 15, 20\}$$

Here $C$ is a subset of $B$ and $C$ contains 4 elements.

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