Question

Which of the following is a subset of the set
A: {integers divisible by 5 from 1 to 30}
Answer
{10, 15, 20}
{30, 35, 40}
{integers divisible by 10 from 1 to 50}
{5, 10, 15 …}

Answer 1

{10, 15, 20}

Answer 2

need explanation?

Answer 3

Yes if you dont mind (:

Answer 4

{30, 35, 40} is out because 40 is not in A

Answer 5

{integers divisible by 10 from 1 to 50} is out for exactly the same reason

Answer 6

{5, 10, 15 …} is out because the "..." indicates that the patter continues and does not stop
any subset of A must be contained in A

Answer 7

Oh my gosh (: lol thanks because i did not understand .

Answer 8

yw