A courtyard is 25 meter long and 18 meter board is to be paved with bricks of dimensions 20 cm by 10 cm. The total number of bricks required is?
Choices:
A) 22877
B) 27778
C) 20000
D) 22500
E) 17799
Number of bricks =Courtyard area/1 brick area   =(2500×1800/20×10)=22500   Answer: 22500
<result>D</result>
A courtyard is 25 meter long and 18 meter board is to be paved with bricks of dimensions 20 cm by 10 cm. The total number of bricks required is?