# Thread: Which is the right domino to complete this series?

1. ## Which is the right domino to complete this series?

I am just taking some basic IQ tests and I completed everyone correctly except this one, I dont see the pattern. Could anyone please clarify?

Which is the right domino to complete this series?

2. Originally Posted by allyourbass2212
I am just taking some basic IQ tests and I completed everyone correctly except this one, I dont see the pattern. Could anyone please clarify?

Which is the right domino to complete this series?

hmm not a huge fan of this type of problem because there is generally more than one correct answer, despite what the test creators may say. anyway one way to get the given answer is by looking at the top as 5,4,3,2,1, and the bottom as 2*(top)%7 where % is mod operator. But this way to get the bottom seems a little obscure, maybe there is a more obvious way.

3. Originally Posted by undefined
hmm not a huge fan of this type of problem because there is generally more than one correct answer, despite what the test creators may say. anyway one way to get the given answer is by looking at the top as 5,4,3,2,1, and the bottom as 2*(top)%7 where % is mod operator. But this way to get the bottom seems a little obscure, maybe there is a more obvious way.
ok probably what they had in mind is similar to the %7 formula; bottom starts with 3 and always decreases by 2, but it loops around from 1 to 6.