Think of it this way.
One times three is three
Two times three is six.
Three times three is nine.
Four times three is twelve.
Five times three is fifteen.
Six times three is eighteen.
Seven times three is twenty one .
Eight times three is twenty four.
Nine times three is twenty seven.
Ten times three is thirty.
Eleven times three is thirty three.
Twelve times three is thirty six.
Now, I think you have noticed that I went through all of the threes, and I came to a conclusion, that twelve is the answer!
Another way is to do thirty six divide by three..Hope that this all would help you!
