Pyramid Paint Calculation
This problem requires calculating the total paint needed for a pyramid's surface area, including an extra amount for retouching.
Base Paint Calculation
Calculate the initial amount of paint needed based on the total surface area and paint coverage rate.
- Total Surface Area = $48 \, m^2$
- Paint Coverage = $2 \, m^2/\text{litre}$
- Base Paint Required = $\frac{\text{Total Surface Area}}{\text{Paint Coverage}}$
- Base Paint Required = $\frac{48 \, m^2}{2 \, m^2/\text{litre}} = 24 \, \text{litres}$
Retouch Paint Calculation
Calculate the extra paint needed for retouching, which is 5% of the base requirement.
- Extra Percentage = $5\%$
- Extra Paint = $5\% \times \text{Base Paint Required}$
- Extra Paint = $0.05 \times 24 \, \text{litres} = 1.2 \, \text{litres}$
Total Paint Determination
Sum the base paint required and the extra paint for retouching to find the final amount.
- Total Paint Needed = Base Paint Required + Extra Paint
- Total Paint Needed = $24 \, \text{litres} + 1.2 \, \text{litres} = 25.2 \, \text{litres}$
The total amount of paint needed is 25.2 litres.
Similar Questions
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Important Questions from Mensuration
In a circular garden of radius 15 m, a path of 2 m wide has to be made inside the garden at the rate of ₹ 24 per sq. m. The cost of making the path is: (Take π = \(\frac{22}{7}\) )
A hollow cylinder with outer radius 4 cm and height 2 cm is made up of 1 cm thick metal sheet. What is the volume of metal used? (Take π = \(\frac{22}{7}\))
The length and breadth of a rectangular field are in the ratio 4 : 3. If the cost of cultivating the field at ₹2 per m 2is ₹600, then the length of the field is:
A cylindrical tank has a capacity of 5632 m3. If the diameter of its base is 8 m, what is the depth of the cylindrical tank? (Use π = \(\frac{22}{7}\))
Find the surface area of a sphere whose diameter is equal to 28 cm.
