Question

the length, breadth and height of a room are 9m, 8m and 7m respectively. find the cost of white washing the walls of the room and the ceiling at the rate of rs6.50 per m2​

Answer 1

Answer:

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Step-by-step explanation:

8m and 7m respectively. find the cost of white washing the walls of the room and the ceiling at the rate of rs6.50 per m2 Please mark me brain list

Answer 2

➸ Given:-

Dimensions of a room

• Length = 9cm
• Breadth = 8cm
• Height = 7cm
• Cost for white washing and ceiling per m² = Rs.6.50.

☣ To Find:-

• Cost of white washing and ceiling the walls of the room.

☢ Required Response:-

Total Surface of the room = 2(lb+bh+hl)

$→\;2(9 \times 8)(8 \times 7)(7 \times 9) \\→\; 2(72)(56)(63) \\→\; 2 \times 254016 \\→\; 508032$

• Area of the walls ☞ $\bold{508032\;m²}$

Cost for white washing and ceiling per m² = Rs.6.50.

Then, Cost for 508032m²

$→\;508032 \times 6.50 \\→\; 3302208$

• Total Cost ☞ $\red{\bold{Rs. 3302208}}$

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