Find the percentage of unshaded portion in the given 10x10 grid.
A
20%
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B
30%
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C
80%
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D
40%
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Solution
The correct option is C 80% The given 10x10 grid has a total of 100 squares. Out of this 20 squares are shaded in red. Hence, 80 squares are unshaded. ∴ Percentage of unshaded portion of the grid = 80100=80%