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Find the number of bricks, each measuring `25 c m\ x\ 12. 5 c m\ x\ 7. 5 c m` required to construct a wall `6\ m\ ` long, `5\ m` high and `0. 5\ m` thick, while the cement and sand mixture occupies `1/(20)` of the volume of the wall.

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RD SHARMA ENGLISH-SURFACE AREA AND VOLUME OF A CUBOID AND CUBE-All Questions
  1. The length of a hall is 20\ m and width 16\ mdot The sum of the ...

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  2. The sum of length, breadth and depth of a cuboid is 19\ c m and len...

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  3. Find the number of bricks, each measuring 25 c m\ x\ 12. 5 c m\ x\ ...

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  4. A class room is 7\ m\ long,\ 6. 5\ m\ w i d e\ a n d\ 4\ m\ h igh ....

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  5. The length of a room is one and a half times its breadth. The cost ...

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  6. Shanti Sweets stall was placing an order for making card board boxe...

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  7. Find the lateral surface area and total surface area of a cuboid of...

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  8. Find the lateral surface area and total surface area of a cube of e...

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  9. Find the ratio of the total surface area and lateral surface area o...

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  10. Mary wants to decorate her Christmas tree. She wants to place the f...

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  11. The length, breadth and height of a room are 5m, 4m and 3m respecti...

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

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  13. A 4\ c m cube is cut into 1 cm cubes. Calculate the total surface a...

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

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  15. Hameed has built a cubical water tank with lid for his house, with ...

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  16. Each edge of a cube is increased by 50%. Find the percentage increa...

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

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

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  19. Ravish wanted to make a temporary shelter for his car by making a b...

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  20. An open box is made of wood 3 cm thick. Its external length, breadt...

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