Question

The length, breadth and height of a hall are 16m,10m and 6m respectively. It has two doors measuring 2m×1.5m each and four windows measuring 2m×2m each. Find the cost of white washing all the four walls and the ceiling of hall at the rate of ₹5 per m².​

Answer 1

₹1525

Hope it's helpful to you

Answer 2

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GIVEN

Length Of a Hall = 16m

Breadth Of a Hall = 10m

Height Of a Hall = 6m

Four walls

Four windows

Two doors

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Formula = 2 X (length + breadth) Height

Area of 4 walls :-

2(16+10) 6

2(26) 6

52 X 6

= 312

Area = 312 m²

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Now, find area of Windows

Area of 4 windows :-

4 (2X 2)

4 (4)

= 16 m2

Area = 16 m²

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Area Of 2 doors :-

2 (2 X 1.5)

2 (3)

= 6

Area = 6 m²

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cost of white washing

312 - 16 - 6

312 - 22

= 290

= 290 m²

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ceiling of hall at the rate of ₹5 per m².

= Rate X Area

= 5 X 290

= 1450

Rs 1450

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hope it helps