Olivia is thinking of a number. She says “my number is odd is is a factor of 30 and a multiple of 3” there are two possible numbers Olivia can be thinking of. What are they?

3 and 15

Step-by-step explanation:

Let's list the factors of 30:

1, 2, 3, 5, 10, 15, 30

Of these, the odd ones are:

1, 3, 5, 15

Of these, the only numbers that are multiples of 3 are 3 and 15.

The two numbers which Olivia can be thinking about that are odd numbers and multiple of 3 are 3 and 15.

Olivia is thinking of a number which is a factor of 30.

The first thing to do is to write out all the factors of 30. So, we have:

Now, Olivia made it clear that the number she was thinking about is an odd number and also a multiple of 3.

From the above factors of 30, the two numbers which Olivia can be thinking about that are odd numbers and multiple of 3 are 3 and 15.

Learn more about factors of a number here:

link