Arjun has a cuboidal shaped store room measuring length, breadth, height are 5m, 4m, 3m respectively. He wants to paint it. Can you help him to find the cost of painting the four walls and ceiling at the rate of Rs 7.50 per m^2, what value is reflected in this problem
Answers
Hey there,
Here's the answer to your question:
Area needed to be painted = 4 walls + ceiling = Lateral Surface Area (LSA) of the room + Area of 1 ceiling
LSA of the room = 2(lh + bh)
We are given,
length (l) = 5m
breadth (b) = 4m
height (h) = 3m
Therefore, substituting the values,
LSA = 2((5)(3) + (4)(3))
= 2(15 + 12)
= 2(27)
LSA of the room = 54 sq. m
Area of ceiling = lb
= 5(4)
Area of ceiling = 20 sq. m
Adding up all the areas, we get,
Area to be painted = 54 + 20 = 74 sq. cm
Rate of painting = Rs 7.50/m^2
Therefore, total cost of painting = 74 * 7.50 = Rs 555.
The value reflected in this problem is the virtue of helping and caring for others.
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Have a great day! ;)