A treatise on mental arithmetic, in theory and practice |
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3rd exercise 5th exercise acre adding aliquot annum answer avoirdupois Belfast Bought carbonic acid dwts exact multiple EXAMPLE EXAMPLE II farthings Find the interest find the price gain or loss gain per cent gallons given number given price Given the price grains Hence higher denomination interest of money loss per cent MENTAL ARITHMETIC miles months multiple of 21 multiplied by Gives multiply the price nails noggin number of articles number of pence ounce penny perch costs pound troy pounds as pence pounds as shillings pounds sterling preceding rule price of 20 price per 1000 price per cwt price per pound prime cost proper fractions proportion quantity quarter questions quires quotient reason required the gain required the loss required the price result roods Rule VIII Rule XVII RULE.-Multiply salary shillings or pounds sold taking the pounds tons TROY WEIGHT week weight yards cost
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Page 44 - Multiply 9s・ 4d・ by the number of pence in the price of...