19. The dimensions of a room are (9 m×8m×6.5m). It has one doorof di – InterviewSolution

1.	19. The dimensions of a room are (9 m×8m×6.5m). It has one doorof dimensions (2 m×1.5 m) and two windows, each of dimensions(1.5 m × 1 m). Find the cost of whitewashing the walls atsquare metre.25 per
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