A R I T H 
Firft: 344I. 1 83 . 9*-d 
And 4+ X 8+3 
As 355 : 1 piaftre 
062-0.41 halfifarthingE. 
= ^ 35 51 
: 6622S4 1 
355)662284(1865 piaftres 
Rem. 209 
Mult, by 8 
355) 1 ^ 7 2 (4 rials 
Rem. Z52 
Mult, by 34 
355)8568(24 marvidies 
Rem. 48 
the 
anfwer. 
M E T I e. | 79 
will be the agio, which fubtracled from the current-mo¬ 
ney will leave the bank-money. 
Reduce 16380 ducats current into ducats banco. Thus 
163804-6=2730 agio, and 16380—2730—13650 ducats 
banco. 
London remits to Venice 764!. the exchange at 53d. 
fterling per ducat banco; how many ducats banco will the 
remittance come to ? Firft, 764I. — i8336od. As 53d : r 
ducat:: i8336od. : 3526 ducats, 3-rj grofs, banco, and 
4231 ducats, 9^ grofs, current. 
Suppoie a correfpondent at Venice owes 3526 ducats, 
3 tV g r °fs, banco, the exchange at 52d. fterling per ducat; 
what fterling-nxoney will this remittance produce at Lon¬ 
don ? Anf'wer, 764I. fterling. 
A merchant at Cadiz remits to London 2547 pefos, at 
«;6d. fterling each; how much fterling is the film. An- 
Lvver, 594I. 6s. 
V. With Portucai.. 
Books and accounts are kept in general throughout this 
kingdom in milreas and reas, reckoning ioocreasto a mil- 
rea, as its name imports ; and they exchange by the rnilrea, 
whofe par is about 6s. 8J-d. or 6s. 9d. fterling. 
A merchant at Oporto fends over to England a cargo of 
wine amounting to 1463 milreas and 424 reas, exchange 
at 5s. 3^d. per rnilrea; how much does the fame amount 
to in fterling money ? 
As 1000 : 63§d. :: 1463424. Or 8000 : 509 :: 1463424 
: 9311034. =2 387I. 19s. 23d. -|- the anfwer. 
To how many milreas will 199I. 15s. amount, exchange 
at 5s. 8d. permilrea? As 5s. Sd. : 1 rnilrea :: 199I. 15s. 
2 705 milreas, the anfwer. 
In 648 milreas, 348 reas, exchange at 5s. 6fd. per mil- 
rea, how many pounds fterling ? Anfw er, iSol. 13s. 23d.4- 
In 425I. ios. 9d. fterling, how many milreas, exchange 
at 5s. 7fd. per rnilrea ? Anfwer, 1513 milreas, 22 reas. 4- 
VI. With Italy. 
At Leghorn and Genoa they keep their accounts in li- 
vres, fols, and deniers, as in France; but they exchange 
by the piaftre or dollar as in Spain, which at Genoa is ac¬ 
counted 5 livres, and at Leghorn 6. Alfo at Venice ac¬ 
counts are kept by fome in the fame manner, and by others 
in ducats and grofs. Alfo at Florence by ducatoons. A 
ducatoon is equal to 4s. 4d. fterling at par. And 6 foldi 
=2 x grofs, and 24 grofs 22: 1 ducat. 
Suppofe there be owing by a cori'efpondent at Genoa 
3675 livres, 15 fols, xo deniers, how much fterling does it 
amount to, exchange at 5od. fterling per piaftre, dollar, or 
piece of eight ? 
Firft 3675 liv. 15 fols, 10 deniers, 4-5 =2 735 dollars, 3 
fols, 2 den. Then, as 1 dol. : 5od. :: 735 dol. 3 fols, 2 
den. : 153I. 3s. iiid. fielding, the anfwer. 
A merchant remitted 1531. 3s. l-fjd. fterling to Genoa, 
how many dollars muft he receive thei-e, the exchange be¬ 
ing at 501I. fterling per dollar? 
Firft, 153I. 3s. =441095 twelfths of pence ; then, 
as 600 : i :: 441095 : 725 dol. 3 fols, 2 den. the anfwer. 
Genoa draw's upon London for 80504 livres, 17 fols, 1 
den. how much fterling will fatisfy the draught, exchange 
at 53§d. fterling per dollar. Anfwer, 3580I. 15s. 93d. 4- 
At Venice fome keep their accounts in ducats of the 
bank, and others in ducats current, but the republic keep 
■them in ducats and grofs. The ducat of the bank, which 
is imaginary, is worth 24 grofs; and 100 ducats banco are 
worth 120 ducats current; to that 5 ducats banco are equal 
to 6 ducats current; and the agio conftantly 20 per cent. 
To reduce Bank Money into Current. 
Rule. Divide the given fum by 5, the quotient is the 
agio, which, added to the bank-money, gives the current. 
Reduce 13650 ducats banco into current. Thus 13650 
.4-5=2730 agio, and 136054-2730=16380 ducats current. 
To reduce Current-money into Bank-money. 
Rule. Divide the current-money by 6, the quotient 
VII. With Russia. 
In the trading parts of tlxis empire, accounts are kept 
in rubles, grives, and mofcoques, reckoned by 10 and 20 ; 
or in rubles and coppeaks ; 100 coppeaks = 1 ruble. The 
courfe of exchange from RuiTia to England is from 5® 
to 56d. per ruble. At par 4s. 6d. fterling. 
How much will a parcel of hemp to the value of 3475 
rubles, and 70 coppeaks, amount to in England., exchange 
at 52|d. fterling, per ruble? 
As 1 rub. : 52-g-d. :: 3475 rub. 70 cop. 
Or 8 : 421 :: 3475 rub. 70 cop. 
Or 800 : 421 :: 307570 : 182908-IJd. =7621. 2S. 
4§4d. the anfwer. 
How much will a remittance of 762I. 2s. 4 -^ft- fterling 
amount to in Ruflia, exchange at 523d. ftei-lisg per ruble? 
Firft 762I. 2s. 4f§d. = 14632697 eightieths of pence, 
and 52 X 84-5X 10=4210 eightieths of pence. Then, 
As 4210 : 1 rub. :: 14632697 
r 
4210) 14632697 (3475 rubles 
Rem. 2947 
Mult, by 100 
4120)294700(70 coppeaks 
2947P0 
* # 
VIII. With Denmark and Norway. 
In thefe countries accounts are kept in marks and fchi.l- 
lings, reckoning 76 fchillings to a mark ; or in rix-dollars., 
marks, and fchillings, reckoned by 6 and i6_. They .ex¬ 
change by the rix-dollar = 6 marks, the par of it is 4s 
6d. and England gives pence and parts for it, from 45 t<» 
56 in the courfe of exchange. 
How much fterling will 6843 rix-dollars, 5 marks, x* 
fchillings, amount to, exchange at 53d. per rix-dollar? 
Firft, 6843x64-5=4io63 marks, X 164-12—65702* 
fchillings, and 16x6=965. = 1 rix-dollar. As 96 ; 53d, 
:: 657020 : 1568l. 8s. 1 id.-}-the anfw er. 
If 188I. 2 s. 6d. fterling be remitted to Norway; how 
much will it amount to, exchange at 48d. per rix-dollar ? 
Firft 1 881 . 2s. 6d. =75251 
And 48 4 - 6 = 8 j 
tellers,. 
As 8 ; 1 rix-dollar :: 7525 
1 
8) 7525 (94° rix-dollars 1 
Rem. 5 
Mult, by 6 
8)30(3 marks 
Rem. 6 
Mult, by 16 
8)96(12 fchillings 
y anfwer. 
J 
In 940 rix-dollars, 3 marks, 12 fchillings, how much 
fterling, exchange at 48d. per rix-dollar ? Anfwer, 1 831 . 
as. 6d» 
IX, 
