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The dimensions of a Cinema Hall are 100m...

The dimensions of a Cinema Hall are 100m, 60m and 15m. How many persons can sit in the hall, if each requires `150m^(3)` of air?

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To solve the problem, we need to follow these steps: ### Step 1: Calculate the Volume of the Cinema Hall The volume of a rectangular solid (like the cinema hall) can be calculated using the formula: \[ \text{Volume} = \text{Length} \times \text{Breadth} \times \text{Height} \] Given dimensions: - Length = 100 m - Breadth = 60 m - Height = 15 m Now, substituting the values into the formula: \[ \text{Volume} = 100 \, m \times 60 \, m \times 15 \, m \] ### Step 2: Perform the Multiplication Now, we calculate: \[ \text{Volume} = 100 \times 60 = 6000 \] Then multiply by the height: \[ 6000 \times 15 = 90000 \, m^3 \] So, the volume of the cinema hall is: \[ \text{Volume} = 90000 \, m^3 \] ### Step 3: Determine the Number of Persons that can be Accommodated Each person requires 150 m³ of air. To find the number of persons that can fit in the cinema hall, we divide the total volume of the hall by the volume required per person: \[ \text{Number of persons} = \frac{\text{Volume of cinema hall}}{\text{Volume required per person}} \] Substituting the known values: \[ \text{Number of persons} = \frac{90000 \, m^3}{150 \, m^3} \] ### Step 4: Perform the Division Now, we calculate: \[ \text{Number of persons} = 90000 \div 150 \] Calculating this gives: \[ 90000 \div 150 = 600 \] ### Conclusion Thus, the number of persons that can sit in the cinema hall is: \[ \text{Number of persons} = 600 \] ---
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ICSE-SOLIDS-Exercise 21(A)
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  2. The volume of a cube is 729cm^(3). Find its total surface area

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  3. The dimensions of a Cinema Hall are 100m, 60m and 15m. How many person...

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  4. 75 persons can sleep in a room 25m by 9.6m. If each person requires 16...

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  5. The edges of three cubes of metal are 3cm, 4cm and 5cm. They are melte...

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  6. Three cubes, whose edges are x cm, 8cm and 10cm respectively, are melt...

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

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  8. The cost of papering the four walls of a room at 75 paise per square m...

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  9. The area of a playground is 3650 m^(2). Find the cost of covering it w...

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  10. A square plate of side 'x' cm is 8mm thick. If its volume is 2880cm^(3...

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  11. The external dimensions of a closed wooden box are 27cm, 19cm and 11cm...

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  12. The external dimensions of a closed wooden box are 27cm, 19cm and 11cm...

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  13. The external dimensions of a closed wooden box are 27cm, 19cm and 11cm...

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  14. A tank 20m long, 12m wide and 8m deep is to be made of iron sheet. It ...

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  15. A closed rectangular box is made of wood of 1.5cm thickness. The exter...

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  16. The square on the diagonal of a cube has an area of 1875 sq. cm. Calcu...

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  17. The square on the diagonal of a cube has an area of 1875 sq. cm. Calcu...

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  18. A hollow square-shaped tube open at both ends is made of iron. The int...

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  19. Four identical cubes are joined end to end to form a cuboid. If the to...

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