Question

2k mx 4 m x 25 cm?
Find the number of bricks of size 20 cm x 12 cm x 5 cm required to build a wall whose volume is 90 m
Find the number
cm x 5 cm required to build a wall whose volume​

Answer 1

Answer:

Volume of wall=19 m ×4 m ×5 m =380m

3

Volume of each brick=25 cm ×15 cm ×8 cm = 3000cm

2

=0.003m

3

Number of bricks needed =

Volumeofeachbrick

(Volumeofwall)−(10Percent×Volumeofwall)

=

0.003

380−(0.1×380)

=114000