Question

Barry is thinking of a number.

Answer 1

Answer:

10 and 30

Step-by-step explanation:

Let's focus on the first 2 parts of the hints :  

The number must be even and a factor of 30 :

Let's write out the factors of 30 :

1 , 2 , 3 , 5 , 6 , 10 , 15 , 30

Now let's pick out the even ones :

2 , 6 , 10 , 30

Now let's take out the multiples of 5 :

10 and 30

These are the answers

Hope this helped and have a good day