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Three equal cubes are placed adjacent...

Three equal cubes are placed adjacently in a row. Find the ratio of total surface area of the new cuboid to that of the sum of the surface areas of the three cubes.

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RD SHARMA ENGLISH-MENSURATION-II (VOLUMES AND SURFACE AREAS OF A CUBOID AND A CUBE)-All Questions
  1. The outer dimensions of a closed wooden box are 10 c m\ by 8c m\ ...

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  2. Find the length of the longest rod that can be placed in a room 12m...

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  3. If V is the volume of a cuboid of dimensions a ,\ b ,\ c\ a n d\ S ...

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  4. The areas of three adjacent faces of a cuboid are x ,\ y\ a n d\ zd...

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  5. A rectangular water reservoir contains 105\ m^3 of water. Find the dep...

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  6. Cubes A ,\ B ,\ C\ having edges 18cm, 24cm and 30cm respectively a...

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  7. The breadth of a room is twice its height, one half of its length an...

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  8. A closed iron tank 12m long, 9m wide and 4m deep is to be made. Det...

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  9. A tank open at the top is made of iron sheet 4m wide. If the dimensi...

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  10. Three equal cubes are placed adjacently in a row. Find the ratio of...

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  11. The dimensions of a room are 12.5 m by 9m by 7m. There are 2 doors ...

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  12. A field is 150m long and 100m wide. A plot (outside the field) 50m ...

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  13. Two cubes, each of volume 512\ c m^3 are joined end to end. Find the s...

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  14. Three metal cubes whose edges measure 3c m ,\ 4c m\ a n d\ 5c m res...

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  15. The cost of preparing the walls of room 12m long at the rate of Rs....

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  16. The length of a hall is 18m and the width 12m. The sum of the areas...

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  17. A metal cube of edge 12cm is melted and formed into three smaller c...

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  18. The dimensions of a cinema hall are 100m, 50m and 18m. How many per...

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  19. The external dimensions of a closed wooden box are 48cm, 36cm, 30cm....

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  20. The dimensions of a rectangular box are in the ratio 2:3:4 and the ...

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