A room is 20m long,10 m wide and 6.5 m high.if it has 4 doirs each of 2.4x1.25m and 8 windows each of measurement 1.25m x .6 m,find the cost of white washing the room at 75 paisa per square meter.
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Answer:
57,900 paisa
Explanation:
20m x 10m x 2 = 400 square meters of floor and ceiling
20m x 6.5m x 2 = 260 square meters of 2 walls
10m x 6.5m x 2 = 130 square meters of other 2 walls
Surface area of room is 790 square meters
2.4m x 1.25m x 4 = 12 square meters of doors
1.25m x .6m x 8 = 6 square meters of windows
790 - 18 = 772 square meters
75 paisa x 772 square meters = 57,900 paisa
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the answer of your question is ₹492
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