In two alloys the ratio of Iron and copp...

In two alloys the ratio of Iron and copper is 4:3 and 6:1 respectively. If 14 kg of the first alloy and 42 kg of the second alloy are mixed together to form a new alloy, then what will be the ratio of copper to iron in the new alloy:

`11:3`

`11:8`

`8:11`

none of these

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