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A opean box is made up of wood 3 cm thick its external length breadth and height are respectively 1.48 m 1.16m 8.3 m find the cost of painting the inner surface at te rate of 15/m2?
Most Upvoted Answer
A opean box is made up of wood 3 cm thick its external length breadth ...
Given
External height =8.3m
External breadth =1.16m
External length =1.48m
Thickness =3cm=.03m
So,
Inner length=1.48-.03=1.45m
Inner breadth=1.16-.03=1.13m
Inner height =8.3-.03=8.0m
Inner surface area =(inner length +inner breath) *inner height +area of top
{(1.45m+1.13ml) *8.0m}
(2.58m*8.0m)
20.64m^2
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A opean box is made up of wood 3 cm thick its external length breadth and height are respectively 1.48 m 1.16m 8.3 m find the cost of painting the inner surface at te rate of 15/m2?
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