Orton & Sadler's Business Calculator and Accountants Assistant: A Cyclopœdia of the Most Concise and Practical Methods of Business Calculations, Including Many Valuable Labor-saving Tables ...

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W.H. Sadler, 1881 - Ready-reckoners - 304 pages
 

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Page 122 - RULE. — Divide the given interest by the interest of the given sum at 1 per cent. for the given time, and the quotient will be the rate per cent. required.
Page 31 - Multiplying or dividing both terms of a fraction by the same number does not change its value.
Page 262 - OF TIME. 60 Seconds = 1 Minute 60 Minutes =± 1 Hour 24 Hours = 1 Day 7 Days = 1 Week 28 Days = 1 Lunar Month...
Page 199 - United States standard, 2150 cubic inches make a bushel. Now, as a cubic foot contains 1728 cubic inches, a bushel is to a cubic foot as 2150 to 1728; or, for practical purposes, as 4 to 5. Therefore, to convert cubic feet to bushels, it is necessary only to multiply by f . EXAMPLE.
Page 256 - COUNTING. 12 units or things make 1 dozen. 12 dozen " 1 gross. 12 gross " 1 great gross. 20 units
Page 64 - The Rate of Interest is the price paid for the use of one dollar. The Amount is the principal with the accrued interest added. As in Percentage there are five facts to be considered, viz. : Principal, Rate per annum, Interest, Time and Amount. APPLICATION OF PERCENTAGE. The Principal is treated as the Base. The Rate, or price paid per annum, is treated as the Rate. The Interest is treated as the Percentage. The Principal and Interest is treated as the Amount.
Page 236 - Or, in measuring boards, you may multiply the length in feet by the breadth in inches, and divide the product by 12 ; the quotient will give the answer in square feet, etc. 21x18 Thus, in the last example, =31£sq, ft., us before. 12 5. If a board be 8 inches wide, how much in length will make a foot square ? RULE.
Page 185 - TIMBER. Round timber, when squared, is estimated to lose one-fifth; hence (50 cubic feet, or) a ton of round timber is said to contain only 40 cubic feet. Round, sawed, and hewn timber is bought and sold by the cubic foot. To measure round timber. RULE.* — Take the girth in feet, at both the large and small ends, add them, and divide their...
Page 97 - To find the interest of any sum at 6 per cent, per annum for any number of months and days. RULE. — Divide the days by 3 and place the quotient to the right of the months; one-half of...
Page 234 - To find the area of a square having equal sides. RULE. — Multiply the side of the square into itself, and the product will be the area, or superficial content of the same name with the denomination taken, whether inches, feet, yards, rods, and links, or acres. EXAMPLES. 1. How many square feet of boards are contain' ed in the floor of a room which is 20 feet square ? 20x20=400 feet, the answer.

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