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28 June, 09:34

A room is 8.5 m long, 6.5 m broad and 3.4 m high. it has two doors, each measuring (2 m 1m). find the cost of painting its four walls at £160 per m.

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  1. 28 June, 11:36
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    Find the surface area of the 4 walls by doing

    2 (8.5x3.4) + 2 (6.5x3.4)

    Then subtract the area of the 2 doors, which is 4

    So the total painted surface will come out to be 98m

    Multiply 98 by the cost, £160 to get a total cost of £15680 to paint the room
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