The volume of a wall is 12.8 meter3. It is 5 times as high as it is broad and…
20242025
The volume of a wall is 12.8 meter3. It is 5 times as high as it is broad and 8 times as long as it is high. Find the breadth of the wall.
Answer: D. 40 cm — We know that, formula: The volume of any Cuboid = Length × Breadth × Height Now, according to the given question: Let the breadth of the wall be x meters.…
- A.
120 cm
- B.
160 cm
- C.
38 cm
- D.
40 cm
Attempted by 5 students.
Show answer & explanation
Correct answer: D
We know that, formula:
The volume of any Cuboid = Length × Breadth × Height
Now, according to the given question:
Let the breadth of the wall be x meters. Then,
Height = 5x metres, and
Length = 40x metres.
According to the formula:
Volume of the cuboid = x × 5x × 40x = 12.8
∴ x3
= 12.8/200 m3
= 128/2000 m3
= 64/1000 m3
So, x = (4/10) m
= {(4/10) × 100} cm = 40 cm.
Hence the required answer is 40 cm.