i 67 1 
Example i. 
In 175 troy pounds, How many avoirdupoifc 
pounds? 
Troy 
Avoirdupoife 
100 
82.2857142857143 
70 
57.6000000000000 
5 
4.1 142857142857 
175 
144.000000000000 
Anfwer, 144, 
Example 2.’ 
In 144 avoirdupolfe pounds, %. How many troy 
pounds ? 
Av. 
Troy 
100 
i2t.5277777777778 
40 
48.61 II mill III 
4 
4.8611111111111 
144 
175.C000000000000 
Anfwer, 175. 
When any fignificant decimal figures remain in 
the fum, after integral pounds, they are eafily re- 
duced into the known parts of a pound : feeing 
that, in troy weight, 24 grains make one penny- 
weight, 20 penny-weights make an ounce, and 12 
K 2 ounces 
