Right answer is 3.
Starting on the left and working to the right, take pairs of dominoes and calculate the sum of the dots they are displaying. This sum follows the sequence 3, 6, 9 and 12.
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Right answer is 3.
Starting on the left and working to the right, take pairs of dominoes and calculate the sum of the dots they are displaying. This sum follows the sequence 3, 6, 9 and 12.
No need for explanation. Now it isn't interesting for others :)
Ah :/ Sorry, i will be know in future.