The length , breadth and height of a hall are 5 m , 6 m and 7 m respectively . The hall has one door of area 1 m * 0.5 m . Find the cost of painting the walls ( only the walls ) at the rate of rupees 90 per square metre
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volume of hall=2(l+b)*h=2(5+6)*7m²=154m²
volume of door=1*0.5m²=0.5m²
volume of wall-volume of door =154-0.5m²=153.5m²
cost of painting of walls=$(90*153.5)=$13815
HOPE IT HELPS YOU
volume of door=1*0.5m²=0.5m²
volume of wall-volume of door =154-0.5m²=153.5m²
cost of painting of walls=$(90*153.5)=$13815
HOPE IT HELPS YOU
Atulmishra11:
volume nhi Latral surface area
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