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State True or False- If the length of each edge of a cube is twice of that 1st cube, then the volume of this cube is 4 times more than that of the 1st cube.

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Let the length of each edge of the 1st cube be a cm. The n the volume of the cube `=(2a)^3 cc, = 8a^2 cc. `
So the volume is `(8a^2)/(a^3)=8 ` times more.
Hence the statement is False.
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CALCUTTA BOOK HOUSE-RECTANGULAR PARALLELOPIPED OR CUBOID-EXERCISE-(MCQs)
  1. State True or False- If the length of each edge of a cube is twice of...

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  2. If the length of the diagonal of a cube be 4sqrt6cm, then the length o...

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  3. The area of a surface of a cube is 16 sq-metres. If the weight of the ...

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  4. If the length and breadth of a rectangular parallelopiped be 16 m and ...

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  5. Length of a side of a cube is 3cm,find its volume and total surface.

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  6. To make a cube of side 1 metre each, how many cubes of side 10 cm each...

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  7. The lengths of the diagonals of each surface of a rectangular parallel...

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  8. Among the length, breadth and height of a rectangular parallelopiped, ...

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  9. The number of edges of a rectangular parallelopiped is .

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  10. The lengths of the diagonals of the roof and that of the floor of a cu...

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  11. The lateral surfaces of a cuboid are to each other.

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  12. If the surface areas of three consecutive surface of a cuboid be x, y,...

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  13. If three edges of a cuboid be a, b, c units volume be v cubic units an...

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  14. The ratio of the areas of three consecutive surface of a cuboid 2 : 3 ...

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  15. If the length of the side of a cube be doubled, then how many percenta...

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  16. If the ratio of the total surface areas of two cubes be 16 : 25, then ...

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  17. By melting a metal cube of side 5 cm each, some cubes of sides 1 cm ea...

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  18. If the length of the sides of a cube of volume v be doubled, then the ...

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  19. The length and breadth of a hall-room are 15 metres and 12 metres resp...

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  20. If the total surface area of a cube be equal to the sum of the surface...

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  21. If the length of the diagonals of each surface of a cube be asqrt2 uni...

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