SOLUTION: There are 10 blocks on the diagram. The first, fifth, and 9th are shaded. If the pattern of shading was continued in the diagram, which of the following squares would be shaded? F

Question 981037: There are 10 blocks on the diagram. The first, fifth, and 9th are shaded. If the pattern of shading was continued in the diagram, which of the following squares would be shaded?
F. 123rd
G. 256th
H. 312th
J. 474th
K. 569th
Please explain, the wise one> Thanks@!
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
Since the pattern repeats every 10 blocks, 1,5 and 9 are the unit values of the shaded blocks. The correct answer is (K. 569) Because it is the only choice with units value of 1,5 or 9.

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