Question

Lenght 13.5 m width 60 cm and height 1.6 m is to constructed by using bricks each of dimensions 22.5 cm by 12cm by 8 cm how many bricks will be needed

Answer 1

we have
vol of wall=13.5m×60cm×1.6m
=1350cm×60cm×160cm
=12960000cm^3



vol of 1 brick =22.5cm×12cm×8cm
2160cm^3


so no of bricks =12960000÷2160
=6000


Hence no of bricks is 6000