EXAMP. 1. London imports from Cadiz goods to the value of 2163 piasstras and 4 rials: How much Sterling will this amount to, exchange at 38½d. Sterling per piastra?

d. Piastr. Rials. Rials. d.
2163 4, at 38½d. 38½ each.
24 = ¼ 216 6 4 = 19½
12 = ½ 108 3
2 = 1 18 0 6
¾ = ½ 2 5 0½
¼ = ¼ 1 2 6½
345 17 1½
1 7½
L. 345 18 8½ Ans.

2. London remits to Cadiz 345 l. 18s. 8½d. How much Spanish money will this amount to, exchange at 38½d. Sterling per piastra?

d. Piastr. L. s. d.
If 38½ : 1 :: 345 18 8½
20
307 614) 1328389(2163 piasstras.
2 6918 1228
12
614 1003
83024 614
16
498149 3898
83024 3684
2149
Carried up 1328389 1842
307
8
Piastr. Rials. 614) 2456(4 rials.
Ans. 2163 4 2456
5½ Soldi } make } 1 gros
24 Gros } 1 ducat = 50½d. Sterling.

The money of Venice is of three sorts, viz. two of bank money, and the piccoli money. One of the banks deals in banco money, and the other in banco current. The bank money is 20 per cent. better than the banco current, and the banco current 20 per cent. better than the piccoli money. Exchanges are always negotiated by the ducat banco, the par being 4s. 2½d. Sterling, as in the table.

Though the ducat be commonly divided into 24 gros, yet bankers and negotiators, for facility of computation, usually divide it as follows, and keep their books and accounts accordingly.

12 Deniers d'or } make } 1 sol d'or
20 Sols d'or } 1 ducat = 50½d. Sterling.

The course of exchange is from 45d. to 55d. Sterling per ducat.