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How many cubes of edge 3 cm can be forme...

How many cubes of edge 3 cm can be formed from a wooden piece of dimensions `36 cm xx 24 cm xx 18cm` ?

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To solve the problem of how many cubes of edge 3 cm can be formed from a wooden piece with dimensions 36 cm x 24 cm x 18 cm, we will follow these steps: ### Step 1: Calculate the volume of the wooden piece. The volume \( V \) of a rectangular prism (wooden piece) can be calculated using the formula: \[ V = \text{length} \times \text{breadth} \times \text{height} \] Given dimensions: - Length = 36 cm - Breadth = 24 cm - Height = 18 cm Substituting the values: \[ V = 36 \, \text{cm} \times 24 \, \text{cm} \times 18 \, \text{cm} \] ### Step 2: Perform the multiplication. Calculating the volume: \[ V = 36 \times 24 = 864 \, \text{cm}^2 \] Now, multiply by the height: \[ V = 864 \times 18 = 15552 \, \text{cm}^3 \] ### Step 3: Calculate the volume of one cube. The volume \( V_c \) of a cube with edge length \( a \) is given by: \[ V_c = a^3 \] For a cube with edge length 3 cm: \[ V_c = 3 \, \text{cm} \times 3 \, \text{cm} \times 3 \, \text{cm} = 27 \, \text{cm}^3 \] ### Step 4: Calculate the number of cubes that can be formed. To find the number of cubes that can be formed from the wooden piece, divide the volume of the wooden piece by the volume of one cube: \[ \text{Number of cubes} = \frac{V}{V_c} = \frac{15552 \, \text{cm}^3}{27 \, \text{cm}^3} \] ### Step 5: Perform the division. Calculating the number of cubes: \[ \text{Number of cubes} = \frac{15552}{27} = 576 \] ### Final Answer: Thus, the number of cubes of edge 3 cm that can be formed from the wooden piece is **576**. ---
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NAGEEN PRAKASHAN ENGLISH-SURFACE AREA AND VOLUME-Exercise 13a
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  15. If V is the volume of a cuboid of dimensions a , b , ca n dS is its...

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  16. The areas of three adjacent faces of a cuboid are x, y and z. If the v...

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  17. If each edge of a cube is increased by 25%, then the percentage incr...

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  18. Find the percentage increase in the surface area of a cube if each sid...

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  19. A metallic sheet is of the rectangular shape with dimensions 48 c m...

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  20. A tank measures 2 m long 1.6 m wide and 1m depth water is there up to ...

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