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If the total surface area of a cube be e...

If the total surface area of a cube be equal to the sum of the surface areas of three cubes of edges 3 cm, 4 cm and 5 cm respectively, then what will be the length of each side of the cube ?

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The correct Answer is:
13 cm
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CALCUTTA BOOK HOUSE-RECTANGULAR PARALLELOPIPED OR CUBOID-EXERCISE-(MCQs)
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  2. The length and breadth of a hall-room are 15 metres and 12 metres resp...

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

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

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  5. The length, breadth and height of a cuboidal piece of ice are 40 cm, 2...

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  6. Determine the total surface area, volume and length of diagonal of a c...

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  7. The volume of a cuboid is 440 cc. If the area of the base of the cubo...

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  8. If a cuboid of length, breadth and height 100 cm, 80 cm and 64 cm resp...

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  9. A part of a cuboidal pot of length 15 cm and of breadth 12 cm is full ...

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  10. If the soil obtained by digging holes of breadth 10 metres around the ...

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  11. If three cubes of side 5 cm each be joined together, then what will be...

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  12. A wooden block is of length 6 metres, of breadth 15 cm and of thicknes...

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  13. The length and breadth of a rectangular land are 20 metres and 14 metr...

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  14. Length of a side of a cube is 7cm,find its diagonal length.

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  15. If a hole of size 5 m xx 4·5 m xx 2.1 m be dug in the middle position ...

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  16. Length of a side of a cube is 5cm,find its diagonal length.

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  17. Length of a rectangular box is 5cm,width 5cm and height 15cm,find the ...

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  18. The outer edges of a cuboidal wooden box are 10 cm, 8 cm, 7 cm respect...

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  19. Length of a rectangular box is 20cm,width 5cm and height 10cm,find the...

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  20. The length and breadth of vuboidal room are 20 metres and 16 metres re...

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