*1860 lbs at 14 a pound would be worth $18.60; at a cent a pound the value is of $18.60, or (20). To divide 627 ft. by 16 ft., change both numbers to halves. See page 7, note MEASUREMENTS. 1. A piece of land 10 rods by 16 rods contains square rods. It is acre. 2. A piece of land 20 rods by 16 rods contains square rods. It is acres. (a) Change 640 sq. rd. to acres. (b) Change 1280 sq. (c) How many acres in a piece of land 40 rd. to acres. rods by 64 rods? acre. rods. 3. Eighty square rods are 4. Forty square rods are 5. One hundred twenty square rods are of an acre. of an acre. of an square 6. A piece of land 20 rd. by 26 rd. contains (d) How many acres in a piece of land 20 rd. by 26 rd.? Find the number of acres in each of the following: 7. A pile of wood 8 ft. by 4 ft. by 4 ft. contains cubic feet. It is cord. 8. Sixty-four cubic feet are 9. Thirty-two cubic feet are of a cord. of a cord. (k) How many cubic feet in a pile of wood 12 ft. by 8 ft. by 4 ft.? (1) How many cords in a pile 12 ft. by 8 ft. by 4 ft.? Find the number of cords in each of the following: (m) 6 feet by 4 feet by 8 feet. (0) 6 feet by 12 feet by 4 feet. (n) 6 ft. by 8 ft. by 8 ft. (i) Two thirds of 53.7 are 1 half of what number? (j) One half of 65.6 is 2 thirds of what number? 9. If a man can earn $12 in 2.1 days, in 2.8 days he (k) If a man can earn $75.45 in 2.1 months, how much can he earn in 2.8 months? 10. If 2.8 tons of coal are worth $12, 2.1 tons are worth dollars. (1) If 2.8 tons of coal are worth $9.60, how much are 2.1 tons worth? 11. If a pile of wood 4 ft. wide, 4 ft. high, and 8 ft. long is worth $5, a pile 4 ft. wide, 4 ft. high, and 32 ft. long is worth dollars. 13. Harry paid 87% of his money for books and had $2 left; before he bought the books he had dollars; the 14. Mr. Hill set 40 trees in his new orchard; 8 of them died the first year; per cent were alive. per cent of the trees were dead; 15. Twenty per cent of 50 is 16. Forty per cent of 50 is per cent of 30. per cent of 80. .* (g) A lawyer's commission for collecting money was 8%;* he collected $875. How much of this money should he keep? and how much should he "pay over" to the man for whom he collected the money? 2. 15 is 37 per cent of (h) 165 is 371% of what? (j) 161 is 87% of what? (1) 135 is 3% of what? (2) 35 is 621% of (i) 165 is 621% of what? (n) A lawyer's commission for collecting money was 8%;* his commission amounted to $34.80. How much did he collect? and how much did he "pay over" to the man for whom he collected the money?† (3) per cent of 48. 30 is 3. 18 is per cent of 48. 4. Forty-five dollars is what per cent of $500? This means, $45 are how many hundredths of $500 ? 5. A lawyer collected $500; he retained as his commission $55 of this sum, and paid the remainder, $445, to the man for whom he collected the money; the lawyer's commission for collecting was -%. *8% of what? 8% of the amount collected. +$31.80 is 8 hundredths of what? One hundredth of $500 is $5. See page 58, problem (o). |