To the extent possible under law, the Text Creation Partnership has waived all copyright and related or neighboring rights to this keyboarded and encoded edition of the work described above, according to the terms of the CC0 1.0 Public Domain Dedication (http://creativecommons.org/publicdomain/zero/1.0/). This waiver does not extend to any page images or other supplementary files associated with this work, which may be protected by copyright or other license restrictions. Please go to http://www.textcreationpartnership.org/ for more information.
There are two Merchants, viz. A and B, A hath 24 C. weight of Tobacco at 4 d. ½ per pound, and B hath Sugar at 7 d. per pound. I demand how much Sugar must B deliver to A for the Tobacco?
By the Rule of Three say, If 1 l. of Tobacco cost 4 d. ½, what will 24 C. 〈 math 〉〈 math 〉
〈 math 〉〈 math 〉
By the foregoing Operation you find that 24 C. will cost 50 l. 8 s. Then say again,
If 7d. buy 1 pound of Sugar, how many pound will 50l. 8s.
By multiplying and dividing you will find that 50 l. 8 s. will buy 1728 pound of Sugar at 7d. per pound, therefore B must deliver 1728 pound of Sugar to A at 7 d. per pound for 24 C. of Tobacco at 4 d. ½ as was required.
〈 math 〉〈 math 〉
Two Merchants barter one with the other: A hath 128 Yards of Broad Cloth at 9 s. 6 d. and B hath Holland Cloth at 3 s. 4 d. per Ell. I demand how much
Holland Cloth B must deliver to A for his 128 Yards of Broad Cloth?
By the Rule of Three say, If 1 Yard of Broad Cloth cost 9: 6 what cost 128 Yards?
〈 math 〉〈 math 〉
If 3 s. 4 d. buy one Ell of Holland Cloth, what will 60 l. 16 s. 〈 math 〉〈 math 〉
Two Merchants barter, A hath 432 Yards of Canvas at 14d. per Yard, B giveth A in barter for those 432 Yards of Canvas at 14 d. 24 pieces of Cloth. I desire to know how much A giveth for one piece of Cloth.
By the Rule of Three. If 1 yard cost 14 d. what will 432 yards? 〈 math 〉〈 math 〉
If 24 pieces cost 25 l. 4 s. what cost 1? 〈 math 〉〈 math 〉
Here I find by the Operation A giveth 21 s. a piece for the 24 pieces of Cloth, as was required.
Two Merchants, viz. A and B do barter one with another, A hath Nutmegs at 5 s. per pound to sell for ready money, but in barter he will sell for 6 s. per pound, and B hath Cinnamon at 4 s. 6 d. per pound, to sell for ready mony. I desire to know how much B must sell his Cinnamon a pound for in Barter that he may not be a loser.
By the Rule of Three. If 5 s. give 6 s. what will 4 s. 6 d? An∣swer 5 s. 4 d. ⅔.
Two Merchants, viz. A and B do barter one with another. A hath Currans at 35 s. per Hundred, ready money, which he barters to B at 42 s. per Hundred: B hath Raisins of the Sun, which cost him 28 Shillings per Hundred, but he barters them at 33 Shillings 3 Pence per Hundred, I desire to know how much in 100 l. each man gaineth?
By the Rule of Three If 35 s. gain 7 s. what will 100 l. gain? Answer 20 l.
If 28 s. gain 33 s. 3 d. what will 100 l. gain? Answer 18 l. 15 s.
By multiplying and dividing you will find,
A gaineth 20 l. per Cent.
B gaineth 18 l. 15 s. per Cent.