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Home > History and Archaeology > History > Orton's Lightning Calculator, and Accountant's Assistant; The Shortest, Simplest, and Most Rapid Method of Computing Numbers, Adapted to Every Kind of Business, and Within the Comprehension of Every One Having the Slightest Knowledge of Figures
Orton's Lightning Calculator, and Accountant's Assistant; The Shortest, Simplest, and Most Rapid Method of Computing Numbers, Adapted to Every Kind of Business, and Within the Comprehension of Every One Having the Slightest Knowledge of Figures

Orton's Lightning Calculator, and Accountant's Assistant; The Shortest, Simplest, and Most Rapid Method of Computing Numbers, Adapted to Every Kind of Business, and Within the Comprehension of Every One Having the Slightest Knowledge of Figures


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About the Book

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. 1866 Excerpt: ... Find the interest of $240 for 1 year, 5 months, and 17 days, at 6 per cent. '6)240 lyr, 5mos., 17da.=527 days. "Multiplied by 40 'j of prin.=40 $?,1.080 Am. If the days are only divisible by 3, multiply one-third of the principal by one-half of the days. 6. What is the interest of $210 for 80 days at 6 per cent.? $70= of the principal. 40= of the days. $2.800 Ant. When the Rate of Interest is 4 per cent Rule.--Multiply the principal by one-third the number of months, or by one-ninth the number of days, and the product is the interest. Note.--This principle is also deduced from the canceling metho_d of computing interest; the student can readily see that 4 is J of 12 and of 36. When the Rate of Interest it 9 per cent. Rule.--Multiply the principal by three-fourtht the number of months, or one-fourth the number of days, or vice verta. BANKERS' METHOD 01 COMPUTING INTEREST, AT 6 PER CENT. FOR ANT NUMBER OF DATS. RULE.--Draw a perpendicular line, cutting off (he two right hand figures of the $, and you have the interest of the sum for 60 days at 6 per cent. Note.--The figures on the left of the line are $, and those on the right are decimals of $. Example 1.--What is the interest of $423 60 days at 6 per cent.? $423=the principal. 84 23 cts.=interest for 60 days. Note.--When the time is more or less than 60 days, first get the interest for 60 days, and from that to the time required. Example 2.--What is the interest of $124 for I ) days at 6 per cent.? Days. Days, 15=J of 60 $124=rprincipal. 4)1 24 cts.=interest for 60 days. 31 cts.=iaterest for 15 days. 7 I Example 3.--What is the interest of 8123.40 for 90 days at 6 per cent.? Days. Days. Days. 90=60+30 $123.40=principal. 2)1 2340=interest for 60 days. 6170=interest for 30 days. Ant. $1 851=intere...


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Product Details
  • ISBN-13: 9781130413205
  • Publisher: Rarebooksclub.com
  • Publisher Imprint: Rarebooksclub.com
  • Height: 246 mm
  • No of Pages: 36
  • Spine Width: 2 mm
  • Width: 189 mm
  • ISBN-10: 1130413209
  • Publisher Date: 01 Mar 2012
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Weight: 82 gr

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Orton's Lightning Calculator, and Accountant's Assistant; The Shortest, Simplest, and Most Rapid Method of Computing Numbers, Adapted to Every Kind of Business, and Within the Comprehension of Every One Having the Slightest Knowledge of Figures
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Orton's Lightning Calculator, and Accountant's Assistant; The Shortest, Simplest, and Most Rapid Method of Computing Numbers, Adapted to Every Kind of Business, and Within the Comprehension of Every One Having the Slightest Knowledge of Figures
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Orton's Lightning Calculator, and Accountant's Assistant; The Shortest, Simplest, and Most Rapid Method of Computing Numbers, Adapted to Every Kind of Business, and Within the Comprehension of Every One Having the Slightest Knowledge of Figures

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