A mineral consists of an equimolar mixtu...

A mineral consists of an equimolar mixture of the carbonates of two bivalent metals. One metal is present to the extent of 12.5% by weight. 2.8gm of the mineral on heating lost 1.32gm of `CO_(2)`. What is the % by weight of the other metal?

87.5

23.21

65.11

40.35

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