THE NEW STUDENTS REFERENCE WORK 2187
LATHS AND SHINGLES.
Laths are 4 ft. long, l1/^ in. wide, and are usually put up in bundles of 100 each.
Allowing for waste, a bundle of laths will cover 6 sq. yd.
Lathing is estimated by the sq. yd. % of the area of all openings is deducted.
Shingles are sold in bunches of 250 each. Dealers will not sell part of a bunch.
Four bunches, or 1,000 shingles, laid 4 inches to the weather, will cover 100 square feet.
EXEKCISE 29.
1. How many bundles of laths will be required for the ceiling of a room 18 ft. long and 15 ft. wide f
2. What is the cost of lathing a room 15 ft. long, 12 ft. wide, and 9 ft. high? There are two doors 6% ft. by 3% ft., and two windows 6 fta by 3i/2 ft.
The laths cost 40c a bundle, and the workman charges 20c a bundle for his labor.
3. How many shingles will be required to shingle the roof of a house 38 ft. long, if the rafters are 22 ft. long?
2 (38X22) =1672 sq.ft.
1672 sq. ft.— 100 = 16.72 squares.
16.72 squares will require 16% M. or 67 bunches of shingles.
EXERCISE 30.
1. I bought 180 bbl. of flour at $5.60 per bbl., and sold the whole for $1,297. How much did I gain?
2. I bought a farm of 135 acres at $46.50 per acre, and sold the farm for $8,575. "What did I gain or lose?
3. A farmer bought 24 head of young cattle for $372. He kept them for 4 mo. at an expense of $2.50 a head per month, and sold them at $31.50 each. How much did he gain?
4. A merchant bought 750 bu. of potatoes at 48c per bushel. Allowing 2% bu. for waste, how much will he gain by retailing the rest at 18c a peck?
5. A farmer has 32 apple trees which bear on an average 5 bbl. each. He hires 3 men for a week at $1.50 per day. He pays 25c each for the barrels, and lOc a barrel for transportation. He sells them for $3.25 a bbl. How much does he make ?
6. A lumber dealer bought 45,500 ft. of lumber at $22.50 per M. He sold 26,000 ft. at $31.50 per M., and the remainder at $27.50 per M. How much did he gain ?
