A house with a flat roof is rectangular in shape, 10 m wide, 13 m long and 5 m high. It is to be painted inside and outside, and on the ceiling, but not on the roof or floor. The total number of sq. m. to be painted is:

360

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460

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650

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590

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720

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Solution

The correct option is D 590
$S = 1 (13 \cdot 10) + 2 [4 (13 \cdot 5)] = 590$ .

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A house with a flat roof is rectangular in shape, 10 m wide, 13 m long and 5 m high. It is to be painted inside and outside, and on the ceiling, but not on the roof or floor. The total number of sq. m. to be painted is:

The correct option is D 590S=1(13⋅10)+2[4(13⋅5)]=590.

The correct option is D 590
$S = 1 (13 \cdot 10) + 2 [4 (13 \cdot 5)] = 590$ .