Question

A mason constructs a wall of dimensions 5m×40m×employees withs bricks each of dimensions 25cm×10cm×15cm . Calculate the total number of bricks used

Answer 1

total length of wall is 40m, the length of a brick is 25cm. therefore he needs 160 bricks horizontally alone.
now the height of the wall is 5m. height of a brick is 10cm. therefore there are 50 bricks vertically. Now we have 160 rows and 50 columns. ie, 160*50 = 8000 bricks used.