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What will be the cost of painting the inner walls of a room if the rate of painting is Rs 20 per square foot?
I. Circumference of the floor is 44 feet.
II. The height of the wall of the room is 12 feet.
I. Circumference of the floor is 44 feet.
II. The height of the wall of the room is 12 feet.
- a)I alone sufficient while II alone not sufficient to answer
- b)II alone sufficient while I alone not sufficient to answer
- c)Either I or II alone sufficient to answer
- d)Both I and II are necessary to answer
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
What will be the cost of painting the inner walls of a room if the rat...
I gives, 2 πR = 44
II gives, H = 12.
∴ A = 2 πRH = (4 × 12)
Cost of painting = Rs (44 × 12 × 20)
Thus, I and II together give the answer.
∴ Correct answer is (d).
II gives, H = 12.
∴ A = 2 πRH = (4 × 12)
Cost of painting = Rs (44 × 12 × 20)
Thus, I and II together give the answer.
∴ Correct answer is (d).
Most Upvoted Answer
What will be the cost of painting the inner walls of a room if the rat...
Cost of Painting Inner Walls of a Room
Given: The rate of painting is Rs 20 per square foot.
To find: The cost of painting the inner walls of a room.
I. Circumference of the floor is 44 feet.
II. The height of the wall of the room is 12 feet.
Solution:
We know that the area of the wall to be painted is given by:
Area = Height x Circumference
I. From statement I, we can calculate the circumference of the floor which is needed to find the area of the wall.
Thus, statement I alone is not sufficient to calculate the cost of painting.
II. From statement II, we can find the height of the wall which is needed to find the area of the wall.
Thus, statement II alone is not sufficient to calculate the cost of painting.
Together, we can use both statements to find the area of the wall.
Area = Height x Circumference
Area = 12 x 44
Area = 528 square feet
Therefore, the cost of painting the inner walls of the room is:
Cost = Area x Rate
Cost = 528 x 20
Cost = Rs 10,560
Hence, both statements I and II are necessary to answer the question.
Given: The rate of painting is Rs 20 per square foot.
To find: The cost of painting the inner walls of a room.
I. Circumference of the floor is 44 feet.
II. The height of the wall of the room is 12 feet.
Solution:
We know that the area of the wall to be painted is given by:
Area = Height x Circumference
I. From statement I, we can calculate the circumference of the floor which is needed to find the area of the wall.
Thus, statement I alone is not sufficient to calculate the cost of painting.
II. From statement II, we can find the height of the wall which is needed to find the area of the wall.
Thus, statement II alone is not sufficient to calculate the cost of painting.
Together, we can use both statements to find the area of the wall.
Area = Height x Circumference
Area = 12 x 44
Area = 528 square feet
Therefore, the cost of painting the inner walls of the room is:
Cost = Area x Rate
Cost = 528 x 20
Cost = Rs 10,560
Hence, both statements I and II are necessary to answer the question.
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What will be the cost of painting the inner walls of a room if the rate of painting is Rs 20 per square foot?I. Circumference of the floor is 44 feet.II. The height of the wall of the room is 12 feet.a)I alone sufficient while II alone not sufficient to answerb)II alone sufficient while I alone not sufficient to answerc)Either I or II alone sufficient to answerd)Both I and II are necessary to answerCorrect answer is option 'D'. Can you explain this answer?
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What will be the cost of painting the inner walls of a room if the rate of painting is Rs 20 per square foot?I. Circumference of the floor is 44 feet.II. The height of the wall of the room is 12 feet.a)I alone sufficient while II alone not sufficient to answerb)II alone sufficient while I alone not sufficient to answerc)Either I or II alone sufficient to answerd)Both I and II are necessary to answerCorrect answer is option 'D'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about What will be the cost of painting the inner walls of a room if the rate of painting is Rs 20 per square foot?I. Circumference of the floor is 44 feet.II. The height of the wall of the room is 12 feet.a)I alone sufficient while II alone not sufficient to answerb)II alone sufficient while I alone not sufficient to answerc)Either I or II alone sufficient to answerd)Both I and II are necessary to answerCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What will be the cost of painting the inner walls of a room if the rate of painting is Rs 20 per square foot?I. Circumference of the floor is 44 feet.II. The height of the wall of the room is 12 feet.a)I alone sufficient while II alone not sufficient to answerb)II alone sufficient while I alone not sufficient to answerc)Either I or II alone sufficient to answerd)Both I and II are necessary to answerCorrect answer is option 'D'. Can you explain this answer?.
What will be the cost of painting the inner walls of a room if the rate of painting is Rs 20 per square foot?I. Circumference of the floor is 44 feet.II. The height of the wall of the room is 12 feet.a)I alone sufficient while II alone not sufficient to answerb)II alone sufficient while I alone not sufficient to answerc)Either I or II alone sufficient to answerd)Both I and II are necessary to answerCorrect answer is option 'D'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about What will be the cost of painting the inner walls of a room if the rate of painting is Rs 20 per square foot?I. Circumference of the floor is 44 feet.II. The height of the wall of the room is 12 feet.a)I alone sufficient while II alone not sufficient to answerb)II alone sufficient while I alone not sufficient to answerc)Either I or II alone sufficient to answerd)Both I and II are necessary to answerCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What will be the cost of painting the inner walls of a room if the rate of painting is Rs 20 per square foot?I. Circumference of the floor is 44 feet.II. The height of the wall of the room is 12 feet.a)I alone sufficient while II alone not sufficient to answerb)II alone sufficient while I alone not sufficient to answerc)Either I or II alone sufficient to answerd)Both I and II are necessary to answerCorrect answer is option 'D'. Can you explain this answer?.
Solutions for What will be the cost of painting the inner walls of a room if the rate of painting is Rs 20 per square foot?I. Circumference of the floor is 44 feet.II. The height of the wall of the room is 12 feet.a)I alone sufficient while II alone not sufficient to answerb)II alone sufficient while I alone not sufficient to answerc)Either I or II alone sufficient to answerd)Both I and II are necessary to answerCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 7.
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What will be the cost of painting the inner walls of a room if the rate of painting is Rs 20 per square foot?I. Circumference of the floor is 44 feet.II. The height of the wall of the room is 12 feet.a)I alone sufficient while II alone not sufficient to answerb)II alone sufficient while I alone not sufficient to answerc)Either I or II alone sufficient to answerd)Both I and II are necessary to answerCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for What will be the cost of painting the inner walls of a room if the rate of painting is Rs 20 per square foot?I. Circumference of the floor is 44 feet.II. The height of the wall of the room is 12 feet.a)I alone sufficient while II alone not sufficient to answerb)II alone sufficient while I alone not sufficient to answerc)Either I or II alone sufficient to answerd)Both I and II are necessary to answerCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of What will be the cost of painting the inner walls of a room if the rate of painting is Rs 20 per square foot?I. Circumference of the floor is 44 feet.II. The height of the wall of the room is 12 feet.a)I alone sufficient while II alone not sufficient to answerb)II alone sufficient while I alone not sufficient to answerc)Either I or II alone sufficient to answerd)Both I and II are necessary to answerCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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