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Length breadth and height of a room are 5 m 4 m and m respectively find the cost of whitewashing the walls of the room and the ceiling at the rate of rs 7.50 per metre square?
Verified Answer
Length breadth and height of a room are 5 m 4 m and m respectively fin...
To find the cost of whitewashing the walls of the room, we need to calculate the total area of the walls. The area of each wall is calculated by multiplying the length and height of the room, which is 5 m x 3 m = 15 m^2. Since there are 4 walls in the room, the total area of the walls is 15 m^2 x 4 = 60 m^2.
To find the cost of whitewashing the ceiling, we need to calculate the area of the ceiling. The area of the ceiling is calculated by multiplying the length and breadth of the room, which is 5 m x 4 m = 20 m^2.
Therefore, the total cost of whitewashing the walls and the ceiling of the room is 60 m^2 x Rs 7.50/m^2 + 20 m^2 x Rs 7.50/m^2 = Rs 450 + Rs 150 = Rs 600.
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Most Upvoted Answer
Length breadth and height of a room are 5 m 4 m and m respectively fin...
- **Given Data:**
- Length of the room = 5 m
- Breadth of the room = 4 m
- Height of the room = m
- Rate of whitewashing = Rs 7.50 per square meter
- **Calculating Surface Area of the Room:**
- Total surface area of the walls = 2 * (length + breadth) * height
- Total surface area of the ceiling = length * breadth
- **Substitute the Given Values:**
- Walls surface area = 2 * (5 + 4) * m
- Ceiling surface area = 5 * 4
- **Calculate the Total Surface Area:**
- Walls surface area = 2 * 9 * m = 18m²
- Ceiling surface area = 20m²
- **Calculate the Total Cost:**
- Total cost for walls = Walls surface area * Rate = 18m² * Rs 7.50 = Rs 135
- Total cost for ceiling = Ceiling surface area * Rate = 20m² * Rs 7.50 = Rs 150
- **Final Answer:**
- The cost of whitewashing the walls of the room is Rs 135 and the ceiling is Rs 150 at the rate of Rs 7.50 per square meter.
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Length breadth and height of a room are 5 m 4 m and m respectively find the cost of whitewashing the walls of the room and the ceiling at the rate of rs 7.50 per metre square?
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Length breadth and height of a room are 5 m 4 m and m respectively find the cost of whitewashing the walls of the room and the ceiling at the rate of rs 7.50 per metre square? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Length breadth and height of a room are 5 m 4 m and m respectively find the cost of whitewashing the walls of the room and the ceiling at the rate of rs 7.50 per metre square? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Length breadth and height of a room are 5 m 4 m and m respectively find the cost of whitewashing the walls of the room and the ceiling at the rate of rs 7.50 per metre square?.
Length breadth and height of a room are 5 m 4 m and m respectively find the cost of whitewashing the walls of the room and the ceiling at the rate of rs 7.50 per metre square? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Length breadth and height of a room are 5 m 4 m and m respectively find the cost of whitewashing the walls of the room and the ceiling at the rate of rs 7.50 per metre square? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Length breadth and height of a room are 5 m 4 m and m respectively find the cost of whitewashing the walls of the room and the ceiling at the rate of rs 7.50 per metre square?.
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