Task: Question Answering
Input (English): Problem: how many bricks, each measuring 25 cm x 11.25 cm x 6 cm, will be needed to build a wall of 9 m x 6 m x 22.5 cm ?
Options: a. 6400, b. 6410, c. 6440, d. 7200, e. 6800
Output (English): d