Education > Complete treatise on practical arithmetic and book-keeping

RULE-OF-FIVE IN VULGAR FRACTIONS.
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11. How much Flemish money must be given for 273Z 6s
Id sterling, at the rate of 34)5 6d Flemish per pound sterling ?
Ans. 471/ 10s.
12. How much South-sea-stock, at 11 If per cent, wall
0000/purchase ? - - Ans. 8978/ 13s 6T4^d.
13. How much Sterling money must be given for 471/
Os Flemish, at the rate of 34s 6d Flemish for each pound
terling ? - . - Ans. 273/ 6s Sd.
RULE.OF-FIVE IN VULGAR FRACTIONS.
p Jtl/IE.
l AKE the continual product of the three last, and the
eciptocals of the two first terms, for the answer required.
I.t.. . - ... Ex.uiplfs.
1. If 2/ 10s be the wages of 15 men for 6 days, .what
nil be the wages of 12 men for 18^- days.
*' h0^-r'f!=6124 “2^ A"s-
3 '
Note. In this solution, having put the fourth term required into the
irm of a compound fraction, it is abbreviated thus: The 12 cancels
le 2 and the 6, and the 5 divides the 15, the quotient 3 being placed
?low it; tfyen there is only 55 left for the numerator, and 3 to multi-
ly by 3, producing 9 for the denominator of the simple fraction re-
iwred. And thus let every such question be managed, viz. put the
rms of it into the form of a compound fraction, the multipliers all in
le numerator, and the divisors in the denominator, after which let
lis compound fraction be abbreviated as much as possible.
2. What is the interest of 350/ for 18 months, at 5 per
-nt, per annum ? - - Ans. 26/ 5s.
3. If I pay 16f 4d for the carriage of 5f cwt 20 miles,
'hat must be paid for the carriage of 17f cwt 7% miles ?
Ans. 1/ 8id.
4. If a footman travel 273 miles in 6^ days of 12 hours
mg, in how many days of 9^ hours, each may he travel 132
files ? - - - Ans. .days,.