15. Find the number of acres that can be bought for each of the following amounts at $75 per acre; at $125 per acre; at $200 per acre: $1000 $1200 $900 $750 $1500 $800 $500 $600 $2000 Aliquot and fractional parts in business. Aliquot and fractional parts are used extensively in extending inventories and invoices. EXERCISES Without copying, make the extensions and find the totals in each of the following inventories: Without copying, make the extensions and find the totals in each The prices in this invoice are given by the pound, except in the case of the flour, where the unit is the barrel, which weighs 196 lb. net. CHAPTER III PRACTICAL MEASUREMENTS DENOMINATE NUMBERS Measurements in business. Many types of business computations are made with numbers which represent measures of some sort, such as length, area, weight, and the like. To make such computations with skill and accuracy requires familiarity with the tables of common measures. ORAL EXERCISES 1. Read and review the tables of measures given on pages 399402 of the Appendix, noting particularly the different abbreviations used for the measures. Name two or more units used in measuring each of the following: 2. Length. 3. Counting by 12. 4. Counting sheets of paper. 5. Volume (cubic measure). 6. Time. 7. Liquid measure. 8. United States money. 9. English money. 10. Avoirdupois weight. 11. Angular measure. 12. Area (square measure). 13. Dry measure. Denominate numbers. All numbers are either concrete or abstract; concrete when applied to a particular object or measure, and abstract when not so applied. A denominate number is a concrete number which specifies a number of units of some measure. For example, 4 and 8 are abstract numbers, 4 barns and 8 houses are concrete numbers, and 4 ft. and 8 lb. are denominate numbers. |