plzzz answer this...
Answers
Answer:
Height of the wall = 4 m = 400 cm
Length of the wall = 15 m = 1500 cm
Width of the wall = 30 cm
∴ Volume of the wall = (400 * 1500 * 30) cm^3 = 18000000 cm^3
Given that 1/12 volume of wall consist of mortar .
Volume of the wall consisting of mortar = 18000000 cm^3 / 12 = 1500000 cm^3
So, that Volume of wall consisting of bricks = 18000000 - 1500000 = 16500000 cm^3.
Dimensions of brick l = 20 cm, b = 12.5 cm, h = 7.5 cm.
Volume of each brick = (20 x 12.5 x 7.5) cm^3 = 1875 cm^3
Now the number of bricks in wall = Volume of the wall consisting of bricks / Volume of one brick.
Number of bricks in wall = 16500000/1875 = 8800.
Thus, there are 8800 bricks in the wall.
Hence, the required number of bricks is 8800.
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Answer:
N=175
Step-by-step explanation:
Wall
L=15m
B=30cm =0.3m=3/10
H=4m
Now, Brick
L=24cm
B=12.5cm=125/10
H=7.5cm=75/10
Now,
LBH of wall =LBH of bricks into n (where n is a number of brick)
N=175