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प्रश्न
Find the number of bricks of dimension 20 cm × 5 cm × 10 cm required to construct a wall of dimension 300 cm × 200 cm × 20 cm
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उत्तर
Number of bricks = `"Dimension of wall"/"Dimension of brick"`
= `(300 xx 200 xx 20)/(20 xx 5 xx 10)`
= 1200 bricks
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