Question

Observe the given pattern and select the fraction of the region that should be shaded in the last block of the pattern.

• A. $\frac{8}{10}$
• B. $\frac{12}{10}$
• C. Cannot be determined
• D. $\frac{9}{10}$

Answer 1

The correct option is A $\frac{8}{10}$

$2$ out of $10$ parts are shaded in the first block.
$4$ out of $10$ parts are shaded in the second block.
$6$ out of $10$ parts are shaded in the third block.
As we move from one block to the next, $2$ parts get added to the shaded portions of the blocks.
Therefore, $8$ out of $10$ parts of the fourth block are to be shaded.
Hence, the correct fraction is $\frac{8}{10}$.