Elementary arithmetic, with brief notices of its history... by Robert Potts.

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quality whose britadth is 15 yards 21 feet. Find the length of the
equivalent strip.
7. Find the whole surface of a room 22 feet 5 inches long, 18 feet
4 inches broad, and 11 feet 8 inches high.
8. The flooring of a room 14 feet 3 inches long, and 13 feet 4 inches
broad, is composed of half-inch planks, each 8 inches wide and 10
feet long. What is the number of planks?
9. What length of carpet - yard wide will cover a room whose
length is 42 feet 5 inches, and breadth 314- feet?
10. If 30 yards of carpet -- yard wide cover the floor of a room,
how many yards 4 yard wide will answer the same purpose?
11. How many paving stones, each of them a foot long and - of
a foot wide, will be required for paving a street half a mile long and
45 feet wide?
12. Find the length of paper - yard wide required to cover the
walls of a room whose length is 27 feet 5 inches, breadth 14 feet
7 inches, and height 12 feet 10 inches.
XXV.
1. In a rectangular court which measures 96 feet by 84 feet there
are four rectangular grass-plots, each measuring 22- feet by 18 feet.
Find the cost of paving the remaining part of the court at 8-d. per
square yard.
2. What must be given per yard for carpet 27 inches wide, that
the carpeting of a room 26 feet long and 15 feet 8 inches broad may
cost ~45?
3. The cost of carpeting a room whose length is 18 feet, at 3s. 6d.
a square yard, is ~5 12s.; and the cost of painting the walls, at 4s. 6d.
a square yard, is ~17. Find the height and breadth.
4. The expense of carpeting a room 18 feet long was ~7~, but if
the breadth of the room had been 4 feet less than it was, the expense
would have been ~5Z. What was the breadth of the room?
5. What is the cost of papering the walls of a room 12 feet 4 inches
high, 16 feet 6 inches long, and 14 feet 3 inches wide, the paper being
2 feet 6 inches wide, and costing 3s. 6d. a yard, the workman also
charging a farthing for every square foot?
6. If the painting of the walls of a room 20 feet 3 inches long and
4 feet 8 inches broad cost ~2 3s. 73d. at 7-d. per square yard, what
is the height of the room?
7. A room is 14 feet 6 inches high, 20 feet wide, and 22 feet long.
What will be the cost to cover it with paper 2 feet 6 inches wide,
whose price is 10 d. a yard? Allow'8 feet by 5 feet 3 inches for each
of two doors, 6 feet 6 inches by 6 feet for a fireplace, and 12 feet by
5 feet 7 inches for one window.
XXVI
1. What is the solid content of a cube whose edge is 6 feet 6 inches?