The rectangular room is 20 ft long. It contains two windows of size 4 ft. x 3.5 ft.
each and
a door of size 3 ft x 8 ft. If 5 pieces of carpets
each of size 10 ft x 6ft
are required for carpeting its floor and 8 pieces of paper each
of size 81sq. ft. are
required for pasting on its walls, find the height of the room.حب
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