Inhaltsangabe
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1895 Excerpt: ...is 20% more than what sum of money? i. 250 yards is 25% more than what distance? j. If $360 is 10% less than the rent of a house, what is the rent of the house? Solution.--If $ 360 is 10 % less than the rent, it must be 90 % of the rent; 1% of the rent is of $360, or $4; and 100%, or the whole rent, is $ 400. k. $240 is 20% less than what sum of money? 361. Illustrative Example. A man sold 208 acres of land, which was 32% of all he owned. How much did he own? Written Work. 208-5-0.32 = 650. Ans. 650 acres. Since 208 is a percentage, produced by multiplying the base by the rate, 0.32 (Art. 341), the base can be found by dividing 208 by 0.32. 362. Hence the following Rule. To find the base: Divide the percentage by the rate. 363. The rule is thus expressed as a formula: Base = Percentage-5-Rate. 364. Examples for Written Work. 89. 815 pounds is 5% of what weight? 90. $ 94.05 is 5% of how much money? 91. If 15% of the cost of a factory is $ 7500, what is the whole cost? 92. 54 inches is 3% of what distance? 93. 428 hours is 8% of how much time? 94. $680.40 is 105% of what sum of money? 95. 834,' square feet is 9% of how many square yards? 96. 125% of what sum of money is equal to $1035? 97. is 3% of what number? 9a iJj is 3£% of what number? 99. Of what number is 1728 cubic inches a percentage, if the rate is 36%? 100. The school census of a certain city shows 78,324 children of school age (5 to 15 years); if these children form 20% of the whole population, what is the population? 101. Of what number is 348.3 miles a percentage, if the rate is 13£%? 102. A horse was sold for $ 258, which was an advance of 20% on the cost. How much did the horse cost? 103. A grocer sold sugar for 115% of its cost and made of a cent a pound. How much did the sugar cost...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1895 Excerpt: ...is 20% more than what sum of money? i. 250 yards is 25% more than what distance? j. If $360 is 10% less than the rent of a house, what is the rent of the house? Solution.--If $ 360 is 10 % less than the rent, it must be 90 % of the rent; 1% of the rent is of $360, or $4; and 100%, or the whole rent, is $ 400. k. $240 is 20% less than what sum of money? 361. Illustrative Example. A man sold 208 acres of land, which was 32% of all he owned. How much did he own? Written Work. 208-5-0.32 = 650. Ans. 650 acres. Since 208 is a percentage, produced by multiplying the base by the rate, 0.32 (Art. 341), the base can be found by dividing 208 by 0.32. 362. Hence the following Rule. To find the base: Divide the percentage by the rate. 363. The rule is thus expressed as a formula: Base = Percentage-5-Rate. 364. Examples for Written Work. 89. 815 pounds is 5% of what weight? 90. $ 94.05 is 5% of how much money? 91. If 15% of the cost of a factory is $ 7500, what is the whole cost? 92. 54 inches is 3% of what distance? 93. 428 hours is 8% of how much time? 94. $680.40 is 105% of what sum of money? 95. 834,' square feet is 9% of how many square yards? 96. 125% of what sum of money is equal to $1035? 97. is 3% of what number? 9a iJj is 3£% of what number? 99. Of what number is 1728 cubic inches a percentage, if the rate is 36%? 100. The school census of a certain city shows 78,324 children of school age (5 to 15 years); if these children form 20% of the whole population, what is the population? 101. Of what number is 348.3 miles a percentage, if the rate is 13£%? 102. A horse was sold for $ 258, which was an advance of 20% on the cost. How much did the horse cost? 103. A grocer sold sugar for 115% of its cost and made of a cent a pound. How much did the sugar cost...
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