please answer my question
plz koi btado yarr bahut urgent h
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volume of 1 brick = 25 × 12 = 300 cm
volume of courtyard = 20 × 15 = 300 m
therefore , no. of brick required :
= volume of courtyard / volume of a brick
= 30000 / 300
= 100
thus 100 bricks r required
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