Two brick walls are built,one with large bricks measuring 30cm in height and the other with smaller bricks measuring 12cm in height.IF both walls are 1.8m tall at completion.how many times could they have both been exactly the same height during the building process?
Answers
Answer:
Step-by-step explanation:
The dimension of the wall are
Length =15m
Breadth =0.3m
Height =4m
We know that
Volume of the wall=1×b×h
By substituting the values
Volume of the wall =15×0.3×4
So we get
Volume of the wall =18 cm
3
It is given that the wall consists of 1/2 mortar
So we get
Volume of one mortar =1/12×18
By division
Volume of mortar 1.5 m
3
So the volume of all = Volume of wall -Volume of mortar
By substituting the values
Volume of wall =18−1.5
By subtraction
Volume of vall =16.5 m
3
Length =22cm=0.22 m
Breadth =12.5 cm=0.125 m
Height =7.5cm=0.075 m
We know that
Volume of one brick =1×b×h
By substituting the values
Volume of one brick =0.22×0.125×0.075
So we get
Volume of one brick =0.0020625 m
3
So the number of bricks = Volume of bricks / Volume of one brick
By substituting the values
Number of bricks =
0.0020625
16.5
So we get
Number of bricks =8000
Therefore, the number of bricks in the wall are 8000.
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