How many bricks having dimensions 20 cm × 5 cm × 5 cm are required to make a wall 2.5 m long, 0.5 m broad and 5 m in height?
Asked by Topperlearning User
| 23rd Aug, 2017,
03:06: PM
Expert Answer:
Dimensions of the brick are,
Length (l) = 20 cm, breadth (b) = 5 cm and height(h) = 5 cm
Volume of brick (V) = 
= 500 cm3
Dimensions of the wall are
Length (l) = 2.5 m = 250 cm,
breadth (b) = 0.5 m = 50 cm and height (h) = 5 m = 500 cm
Volume of the wall(V1) == 6250000 cm3
Let N number be the number of bricks required to make the wall.
Then, N × V = V1
N = 
12500 bricks are required to make the wall.
Answered by
| 23rd Aug, 2017,
05:06: PM
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