Calculate the cost required to paint a container that is in the shape of a cylinder having abase radius of 10 cm and height of 15 cm. If the painting cost of the container is Rs. 3 per ?
Question
Calculate the cost required to paint a container that is in the shape of a cylinder having abase radius of 10 cm and height of 15 cm. If the painting cost of the container is Rs. 3 per ?
Solution
To calculate the cost of painting the container, we first need to find the surface area of the cylinder. The formula for the surface area of a cylinder is 2πrh + 2πr², where r is the radius and h is the height.
Step 1: Substitute the given values into the formula. Surface Area = 2π(10 cm)(15 cm) + 2π(10 cm)²
Step 2: Calculate the surface area. Surface Area = 2π(150 cm²) + 2π(100 cm²) Surface Area = 300π cm² + 200π cm² Surface Area = 500π cm²
Step 3: Convert the surface area to square meters, as the cost is usually given per square meter. There are 10,000 square centimeters in a square meter, so divide the result by 10,000. Surface Area = 500π cm² / 10,000 = 0.157 m²
Step 4: Multiply the surface area by the cost per square meter to find the total cost. Cost = Surface Area * Cost per square meter Cost = 0.157 m² * Rs. 3 Cost = Rs. 0.471
So, the cost required to paint the container is approximately Rs. 0.471.
Similar Questions
What is the cost of painting a wall with a length of 15 m and abreadth of 20 m if the cost of painting is Rs. 10 per m²?
A rhombus-shaped sheet with perimeter 40cm and one diagonal 12 cm, is painted on both sides at the rate of Rs. 5 per m2. Find the cost of painting
Find the cost of painting the outer surface of a hollow cylindrical pipe of radius 2 m andheight 21 m at the rate of ` 5 per m2.
The internal and external diameters of a hollow hemispherical vessel are 20 cm and 28cm respectively. Find the cost of painting the vessel all over at 35 paise per cm².
A wall is of the form of a trapezium with height 4 m and parallel sides being 3 m and 5 m. What is the cost of painting the wall, if the rate of painting is Rs. 25/- per square metre?Choices:- 240 280 400 440
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.