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:
সমাধান
সঠিক উত্তর: 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