A courtyard is 25 meter long and 16 meter board is to be paved with bricks of dimensions 20 cm by 10 cm. The total number of bricks required is :	Choose the correct choice from the following choices:
A) 16000 B) 18000 C) 20000 D) 22000 E) None of these
Explanation:   Number of bricks =20000ourtyard area /1 brick area   =(2500×1600 /20×10)=20000   Option 20000
<result>C</result>
A courtyard is 25 meter long and 16 meter board is to be paved with bricks of dimensions 20 cm by 10 cm. The total number of bricks required is :