Suppose That Country a and Country B Are Both on a Bimetallic

Suppose that country A and country B are both on a bimetallic standard.In country A the ratio is 15 to one (i.e.,an ounce of gold is worth 15 times as much as an ounce of silver in that currency) ,while in country B the ratio is ten to one.If the free flow of capital is allowed between countries A and B,is this a sustainable framework?

A) Yes
B) No
C) There is not enough information to make an informed determination.