A courtyard 25 m long and 16 m broad is to be paved with bricks of dimension 20 cm by 10 cm. The total number of bricks required is:
Solution
Correct Answer: Option B
courtyard area=(25 x16) sq m brick area=(20/100 x10/100)=(.2 x.1)sq m so required brick=25 x16/.2x.1=20000
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