Answer :

Answer:

0.138 hanks/lb

Step-by-step explanation:

Given:

Silver = 60 grain/yd

Now,

1 hank = 840 yd

or

1 yd = [tex]\frac{\textup{1}}{\textup{840}}[/tex] hank

And,

1 lb = 7000 grain.

or

1 grain = [tex]\frac{\textup{1}}{\textup{7000}}[/tex] lb

Thus,

60 grain/yd = [tex]\frac{60\times\frac{1}{7000}}{1\times\frac{1}{840}}[/tex] lb/hanks

or

60 grain/yd = 7.2 lb/ hanks

or

[tex]\frac{\textup{1}}{\textup{7.2}}[/tex] hanks/lb

or

0.138 hanks/lb

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