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The result of the following is in rials plate, and maravadies.

5. In 610 hard dollars, how many rials plate.

610
20 rials vellon = 1 hard dollar

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6. What will 2632 barrels of flour come to, at 11 current dollars per barrel ?

2632

11

28952 piastres or current dollars

8 rials plate=i piast. or current dollar Anf. 231616 rials plate,

7 88 lafts of white dry falt, at 6 piastres per laft.

88
6

528

8

4224

Ans. 4224 rials plate.

X

8. Change £.600 sterling to rials plate, exchange ar 364d. stere ling per piastre.

600

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180

135
145) 1530(10 maravadies

145
80

Anf. 31779 rials plate 10 mar. 9. In £ 3200 Sterling, how many rials plate, exchange at 36 d. Sterling per piastre ?

Ans.

169489 r. plate 22 mar. N. B. In St. LUCAR accounts are kept in Rials plate and Quartos, 16 quartos to i rial plate.

BILBO A.

Accounts are kept in Rials vellon and Maravadies, 34 maravadies making 1 rial.

To change piastres or current dollars to rials plate. Rule. As i current dollar is to 15 rials 2 maravadies, so is the given fum to the rials required; or, multiply the sum by 15 rials 2 caravadies, for rials.

ExAMPLE. .

In 5000 current dollars, how many rials vellon? 251) 5000

15 2=1 c.dol.

Or thus, 5000

2

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To change current dollars to sterling. RULE. As i dollar is to the rate of exchange, so is the given fum to the sterling required.

EXAMPLE In 5000 piastres or current dollars, how many pounds sterling, exchange at 36 d. per dollar ?

p.
d.

p.
As

361 :: 5000

367

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To change sterling to current dollars. Rule. As the rate of exchange is to i dollar, so is the given sum to the dollars required,

EXAMPLE. In £-757 16 3 sterling, how many current dollars, exchange at 36fd. sterling per dollar ? d. dol. £. s. d.

757 16 3 Ans. 50oo cur.dols. or piast.

As 363

I

To change sterling to rials vellon. RULE. As the rate of exchange is to 15 rials 2 maravadies, fo is the given sum to the rials required.

EXAMPLE. In £.436 jos. sterling, how many rials vellon, exchange at 361d. sterling per current dollar ? d.

£. s. As 36} 363 :

:: 436 10 8

20

r. m. 15 2

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PRACTICAL QUESTIONS.
What will 122 quintals of fish come to, at 136 rials per quin-

1. tal ?

I 22 136

732 366 122

Anf. 16592

rials. What is the cranage of 1137 quintals of fish, at 10 maravadies per quintal ?

Ans. 334 R. 14 M.

2.

PORTUGAL

Accounts are kept in Millreas and Reas, reckoning 100 reas to I millrea of 55. 7{d. Sterling, or i dol. 25 cts, in the United States.

A vinten is 20 reas, and 5 vintens is a festoon of 100 reas.

1. Change 579 millreas 740 reas to Federal, at 1 dol. 25 cts. per millrea,

M. R. 579,740

Or thus, 579,740 1,25

144,935 2898 700

dollars 724,675

added

69568 80

cents 72467,500

Anf. 724 dols. 671 cts.

2. Change 724 dols. 671 cts. to millreas, at i dol. 25 cts. per millrea.

1,25)724,675(579 mill. 740 reas. Or, deducting from the sum in Federal money gives the millreas, &c. Example. $724,675

144,935

579:740 as before. .

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