"ORAN D"C————t———— 
MATHEMATICAL PAPERS. 4$; 
And obferve :—The greater the rate of infürance, the more 
operations are requifite s becaufe the lefs of the adventure will 
be covered by the infurance of each preceding premium. °? 
. 2. Another way.—Caft the premium of infurance on the 
adventure, (as before) which, fubtract from the adventure ;— 
then, by the Rule of Three, it will be—as that remainder : 
adventure :: the adventure : the fum to be infured. 
Example. Adventure, £.315.—Rate of infurance, 30 per 
cent. 
"> 
1.315 5315.0. 0 As £.220. 105, : £.315 33 £-315 : 
-36 94. 10.0 20 20 
m MÀ—— t MÀ MÀ ee a mr—É amc — 
94,50 Remain.220. 10.0 o gto 6300 
20 
10,00 : 31500 
6 
4410) 1984500(450 
17640 
22050 
Smeg. 22050 
a cA fi. Me 
ae Bea Se -000000 
x A ; - SEC dE ^ e baies 
The laft operation here is beft-done, in many cafes, by de- 
cimal arithmetick : Thus, ` 
As 220,5 : 3155: 315 
315 
99225 
220,5 ) 99225,0 ( 450 
8820 
11025 
11025 
eree 
000900 
