ted States, also Canada, Nova-Scotia, and Sterling, each in the left hand column, and then cast your eye to the and you will have the rule. Canada, Suth-Carolina, 1 ...and Georgia. and Sterling. Nova Scotia. red ( Multiply the giv- Multiply the giv Deduct one by 6. Multiply the give jen sum by 28, and Deduct one third en sum by 3, and · divide the product from the given divide the product by 45. sum. by 5. Multiply the giv- Multiply the giv- Multiply the given sum by 7, and en sun by 5, and en sum by 9, and divide the product divide the product divide the product by 12. by 8. by 16. Multiply the give en sum by 15, and! From the given divide the product sum, deduct onej by 14. Itwenty-eighth. Deduct one fifi teenth from the given sum. Deduct one tenth from the given sum. To the English Add one ninth money add one to the given sum. twenty-seventh. Of the Rules contained in the foregoing Tible. . EXAMPLES. 1. Reduce 461. 10s. 6d. of the currency of Nevr-liamp. shire, into that of New-Jersey, Pennsylvania, &c. See the Rule. 4)46 10 6 in the Table.. +11 127) menc ins. £75 4 45 4. Reduce 461. 11s. 8d. New-York and North-CardLona currency, to sterling or English Money. fr. s. d. 46 11 8 To reduce any of the different currencies of the several States into each other, at par; you may consult the preceding Table, which will give you the Rules. DEORE EXAMPLES FOR EXERCISE. a 5. Reduce 841. 10s. 8d. New Hampshire, &c. currency, into New Jersey currency Ans. £105 13s. 4d. 6. Reduce 120l. 88. 3d. Connecticut currency, into New-York currency. Ans. £160 115. od. 7. Reduce 1901. 10s. Massachusetts currency, into South-Carolina.and Georgia currency. Ans. 693 148. 514. 8. Reduce 4101. 18s. 11d. Rhode Island currency, into Canada and Nova-Scotia currency. Ans. 6342 9s. 1d. 9. Reduce 5241. 85. 4d. Virginia, &c. currency, into Sterling money. : Ans. +393 6s. 36. 10. Reduce 2141. 9s. 2d. New Jersey, &c. currency, into New Hampshire, Massachusetts, &c. currency. Ans. '£171 11s. 4d. 11. Reduce 1001. New Jersey, &c. currency, into N. York and North-Carolina currency Ans. £106 13s. 4d. 12. Reduce 100l. Delaware and Maryland currency, into Sterling money: Ans. £60. 13. Reduce 1161. 10s. New-York currency, into Connecticut currency. Ans. £87. 7s, 6d. 14. Reduce 112l. 7s. Sd. S. Carolina and Georgia Currency, into Connecticut, &c. currency. Ans. [144 9s. 31d. 15. Reduce 1001, Canada and Nova-Scotia currency, into Connecticut currency. ... Ans. £ 120." 16. Reduce 1161. 14s. 9d. Sterling money, înto Connecticut currency Ans. 4155 138. 17. Reduce 104.. 10s, Canada and Nova-Scotia curI'ency, into New-York currency. Ans. £ 167 4s. 18. Reduce 1001. Noya-Scotia currency, into New. Jersey, lic. currency. Ans. £150. RULE OF THREE DIRECT: THE Rule of Three Direct Teaches, by having three numbers given to find a fourth, which shall have the same proportion to the third, as the second has to the first. 1. Observe that two of the given numbers in your question are always of the same name, or kind; one of which must be the first number in stating, and the other, the third number ; consequently, the first and third num. bers must always be of the same name, or kind; and the other number, which is of the same kind with the answer, or thing sought, will always possess the second or middle place. 2. The third term is a demand ; and may be known by these or the like words before it, viz. What will; What cost? How many : How far? How long or, How much ? &c. RULE. . 1. State the question; that is, place the numbers 80 that the first and third terms may be of the same kind; and the second term of the same kind with the answer, or thing sought. 2. Bring the first and third terms to the same denom, ination, and reduce the second term to the lowest name mentioned in it. .S. Multiply the second and third terms together, and divide their product by the first term; the quotient will be the answer to the question, in the same denomination you left the second term in, which may be brought into any other denomination required. The method of proof is by inverting the question, NOTE. The following methods of operation, when they can be used, perform the work in a much shorter manner than the general rule. 1. Divide the second term by the first; multiply the quotient into the third, and the product will be the answer Or 9. Divide the third term by the first; multiply the quotient into the second, and the product will be the answer. Or : 9. Divide the first term by the second, and the third hy that quotient, and the last quotient will be the answer. Or .4. Divide the first term by the third, and the second by that quotient, and the last quotient will be the ansiver. |