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GATE Electronics and Communications (EC) 2022 Solved Paper

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Question : 4 of 65

Marks: +1, -0

The figure shows a grid formed by a collection of unit squares. The unshaded unit square in the grid represents a hole.

What is the maximum number of squares without a “hole in the interior” that can be formed within the 4 × 4 grid using the unit squares as building blocks?

15
20
21
26

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