If same pattern is followed in the both the stars, then the value of 'a' is and the value of 'b' is .

x - y

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2 x

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x + y

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2 y

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Solution

The correct options are
A $x - y$
C $x + y$
The north, east, south and west directions are as shown in the figure bellow.

In the first star, the sum of the values in north limb and south limb is equal to the value in the east limb, and the difference of the value of the north limb and south limb is in the west limb.

Hence, following the same pattern we have
$a = x + y$ and $b = x - y$ .

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