Task: Question Answering
Input (English): Problem: 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 ? 
Options: a ) 22877 , b ) 27778 , c ) 20000 , d ) 27999 , e ) 17799
Output (English): c