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 590
$$S = 1 (13 \cdot 10) + 2[4(13 \cdot 5)] = 590$$.