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प्रश्न
A picture of chess board is given. Find the percentage of the squares that have the pieces 
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उत्तर
Number of squares having pieces = 20
Total number of squares = 64
Percentage = `20/64 xx 100/100`
= `20/64 xx 100%`
= `(125%)/4`
= `31 1/4%`
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