the cinema hall is 35m long 26 m broad and 15 m high. it has 6 doors each measuring 3.5m by 2 m and 8 windows measuring 2m by 1.5m.find the cost of colouring the wall at the rate of ₹12 per m2.
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Answer:
CSA of cinema hall = 2h[l+b]
2[15m][ 35m + 26m ]
30m[61m]
183 m²
area of 6 doors = 6[3.5m × 2m]
6[7m²]
42m²
area of 8 windows = 8[2m×1.5m]
8[3m²]
24 m²
total area of walls = 183 m² - [ 42m² + 24² ]
183 m² - 66m²
117 m²
cost of coloring the walls = 117 m² × ₹12
₹1404
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