SOLUTION: A room is 12 feet long, 8 feet wide and 10 feet high. Find the cost of whitewashing the four wall inside the room, leaving out two doors each measuring 7 feet high and 4 feet wide

Question 1016860: A room is 12 feet long, 8 feet wide and 10 feet high. Find the cost of whitewashing the four wall inside the room, leaving out two doors each measuring 7 feet high and 4 feet wide and four windows each measuring 4 feet high and 3 feet wide if the rate is tk. 12 per square feet.
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
Hi there,
Total surface area of 4 walls:-
2 x 12 ft x 10 ft = 240 ft^2
2 x 8 ft x 10 ft = 160 ft^2
= 400 ft^2
Area of doors:-
2 x 7 ft x 4 ft = 56 ft^2
Area of windows:-
4 x 4 ft x 3 ft = 48 ft^2
Surface area to be painted:-
400 ft^2 - (56 + 48 ft^2)
400 ft^2 - 104 ft^2
= 296 ft^2
Cost of painting:-
296 ft^2 x tk 12
= tk 3552
Hope this helps :-)
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