. The number of bricks required to build a5 m long, 4 m high and 25 cm

1.	. The number of bricks required to build a5 m long, 4 m high and 25 cm thick. Each brbeing 20 cm long, 10 cm broad and 6.25high is(1) 4000(3) 4500(2) 5000(4) of these
Answer» Volume of each brick= l * b h= 20106.25= 1250 cm^3 Volume of wall == lbh= 50040025= 5000000 cm^3 Let no. Of bricks required = nnvolume of brick = volume of walln = 5000000/1250 = 4000 No. of bricks required = 4000

. The number of bricks required to build a5 m long, 4 m high and 25 cm thick. Each brbeing 20 cm long, 10 cm broad and 6.25high is(1) 4000(3) 4500(2) 5000(4) of these

Answer»

Volume of each brick= l * b *h= 20*10*6.25= 1250 cm^3

Volume of wall == l*b*h= 500*400*25= 5000000 cm^3

Let no. Of bricks required = nn*volume of brick = volume of walln = 5000000/1250 = 4000

No. of bricks required = 4000