The set S represents even numbers from 2 to 30.
S = {2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30}

The set C represents multiples of 3 from 3 to 30.
C = {3, 6, 9, 12, 15, 18, 21, 24, 27, 30}

How many elements are in the set ?

5

15

20

25

Question

The set S represents even numbers from 2 to 30.
S = {2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30}

The set C represents multiples of 3 from 3 to 30.
C = {3, 6, 9, 12, 15, 18, 21, 24, 27, 30}

How many elements are in the set ?

 5

 15

 20

 25

anonymous · Answer

please help me

anonymous · Answer

In the set? In which set?

It's probably asking about either
$$S\cup C $$ or
$$S\cap C $$

The first thing means union, and the second means intersection.