42. How many cubic yards of earth must be thrown from a cellar 40 ft. long, 30 ft. wide, 6 ft. deep; and what will be the cost of the excavation, at 12 cents a cubic yard? Ans. 266 cubic yards; $33.331.

43. If 6 pounds of cheese cost $, how much will 10 pounds cost? Ans. $11. 44. How much wheat at $1.25 a bushel, must be given for 50 bushels of corn at $.70 a bushel?

45. At 10 cents a pint, what will 189 gallons of molasses cost? Ans. $151.20. 46. At 15 cents a pound, what will of a pound of coffee cost? Ans. 2 cents. 47. If 3 gallons of molasses cost $, how many gallons can be bought for $4? Ans. 148. 48. At $7 a firkin, how many firkins of butter can be bought for $33 ? 49. If of a yard of cloth cost $4, what will one yard cost? Ans. $24. 50. At $3 a barrel, how many barrels of cider can be bought for $8% ?

Ans. 4.

Ans. 213 barrels.

51. What part of 100 pounds is 16 pounds?

Ans..

52. How much wood in a load 10 ft. long, 31 ft. wide, and 4 ft. high? Ans. 1 Cd. 12 cu. ft.

53. How many tons of coal may be bought for $346.125 at $9.75 per ton? Ans. 35.5 tons. 54. What is the interest on $136.80 for 1 yr. 11 mo., at 7 per cent? Ans. $18.354. 55. What will be the cost of .6 of a gallon of wine, at $.65 a gallon?

56. A owns of a flouring mill, and sells to B; what part of the whole has he left?

Ans. $.39.

of his share

57. If 2 yards of cloth cost $64, what will 9 yards cost? Ans. $30.

58. What will off of a barrel of flour cost at $7 per barrel? Ans. $21. 59. If 1 acre of land yield 1 T. 9 cwt. 47 lb. of hay, how much will 18 acres yield?

60. A speculator bought 1575 barrels of potatoes, and upon opening them, he found 15 per cent. of them spoiled; how many barrels did he lose? Ans. 236.25. 61. How many steps of 30 inches each, must a person take in walking 10 miles? Ans. 21120. 62. A man bought 12 bushels of chestnuts, at $4.50 a bushel, and sold them at 12 cents a pint; what was his whole gain? Ans. $38.16.

63. What is the interest on $300, for 10 mo. 21 days, at 6 per cent.? Ans. $16.05. 64. An agent in Chicago, purchased 5450 bushels of wheat, at $.82 a bushel; what was his commission at 2 per cent. on the purchase money? Ans. $89.38.

65. A vessel loaded with 4500 bushels of corn, was overtaken by a storm at sea, and it was found necessary to throw overboard 25 per cent. of her cargo; what was the whole loss, at 60 cents a bushel? Ans. $675.

66. A grocer bought 2 hogsheads of molasses, at 371 cents a gallon, and sold it at 20 per cent. advance on the cost; what was his whole gain? Ans. $9.45.

67. If of an acre of land is worth $60, what is the value of 1 acre?

Ans. $84.

68. If 1 bushels of wheat sow an acre of land, how many acres will 12 bushels sow?

Ans. 9 acres.

69. If a farm is worth $3840, what is § of it worth?

Ans. $2400.

70. If 17 kegs of nails weigh 27 cwt. 3 qrs. 23 lbs. 3 oz., long ton weight, how much will 1 keg weigh?

of a dollar, how many

71. If a bushel of apples cost may be bought for of a dollar? 72. Divide of } by † of †. 73. What is the amount of $620 for 4 yr. 3 mo., per cent.?

Ans. t.

at 6

Ans. $778.10.

74. What is the brokerage on $5462, at 4 per cent.? 75. How many pounds of butter at 13 cents a pound, must be given for 1230 pounds of sugar at 8 cents a pound? Ans. 7288 pounds. 76. Divide 168 bu. 1 pk. 6 qt. of corn equally among 35 persons. Ans. 4 bu. 3 pk. 2 qt. 77. What will be the cost of lathing and plastering overhead, a room 36 feet long and 27 feet wide, at 28 cents a square yard? Ans. $30.24. 78. How much land at $2.50 an acre, must be given in exchange for 360 acres, at $3.75 an acre?

79. What is the amount of $564.58, for 3 yr. 5 mo. 12 da., at 6 per cent.? Ans. $681.448.

80. How much sugar at 9 cents a pound, should be given for 6 cwt. of tobacco, at 14 cents a pound?

81. How many times may a jug which holds of a gallon, be filled from a cask containing 128 gallons?

82. A man having $25000, invested 30 per cent. of it in bonds and mortgages, 45 per cent. of it in bank stocks, and the remainder in railroad stock; how much did he invest in railroad stock?

Ans. $6250.

83. How many times can a box holding 4 bu. 3 pk. 2 qt., be filled from 336 bu. 3 pk. 4 qt.?

Ans. 70.

84. How many cords of wood in 17 piles, each 11 feet long, 4 feet wide, and 6 feet high?

85. If the price of 1 acre of land is $324, what is the value of of an acre? Ans. $281.

86. What number of times will a wheel 14 ft. 10 in. in circumference, turn round in traveling 11 mi. 255 rd. 12 ft. 6 in.? Ans. 4200. 87. A man bought a farm of 136 acres, at $94 an acre; he paid $475 for fencing and the improvements, and then sold it for 14 per cent. advance on the whole cost; what was his whole gain? Ans. $1856.26. 88. If 36.48 yards of cloth cost $54.72, what will 14.25 yards cost? Ans. $21.375. 89. If $13.342 will pay for 17.5 bushels of barley, how many bushels can be bought for $76.24?

Ans. 100 bushels. 90. A lady having $40.50, spent 40 per cent. of it for dry goods; what had she left? Ans. $24.30. 91. A gentleman bought a house and lot for $6425 ; in the course of five years it increased in value 110 per cent.; what was the property then worth? Ans. $13492.50. 92. What will a broker charge to change $560 uncurrent money for current money, at 3 per cent.?

Ans. $16.80.

Ans. 9 cents.

93. If 4 hogsheads of wine cost $181.44, what is the cost of 1 pint? 94. What will 5 casks of rice cost, each weighing 165 pounds, at 5 cents a pound? Ans. $45.37.

METRIC SYSTEM.

198. The Metric System of weights and measures is based upon the decimal scale.

199. The Meter is the base of the system, and is the one ten-millionth part of the distance on the earth's surface from the equator to either pole, or 39.37079 inches.

200. From the Meter are made the Are (air), the Stere (stair), the Liter (leeter), and the Gram; these constitute the primary or principal units of the system from which all the others are derived.

201. The Multiple Units, or higher denominations, are named by prefixing to the name of the primary units the Greek numerals, Deka (10), Hecto (100), Kilo (1000), and Myra (10000).

202. The Sub-multiple Units, or lower denominations, are named by prefixing to the names of the primary units the Latin numerals, Deci (†), Centi (180), Mille (1000).

Hence, it is apparent from the name of a unit, whether it is greater or less than the standard unit, and also how many times.

The following are the metric measures authorized by Congress in 1866, with their equivalents: