Question

How many bricks of size 25cm×15cm×6cm are required to make a wall 5cm long,2m high and 50cm thick, if 10% place is occupied by cement​

Answer 1

Answer:

volume of a brick=25x15x6=2250cm2

Volume of wall=5000X200x50

= 50000000( Length is here taken

50m)

Cement5ooooooox 10/100 =

5 oooooo

Remaining vol=5ooooooo-5000000

= 45 oooooo

bricks required

= 45000000/2250=20000. Ans