Six coins of gold and silver of equal...

Six coins of gold and silver of equal weights melted and new coins are cast. The ratio of gold and silver in one of the coins is 2 : 1, in another two coins 3 : 5 and 7 : 5 in the remaining coins. What will be the ratio between gold and silver respectively "in the new coins? `1:1` b. `12 : 11` c. `42 : 25` d. `19 : 17`

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Six coins of equal weight made up of an alloy of gold and silver are melted to make another set of six coins .The ratio of gold and silver in a coins is in ratio of 2:1 , in two coins this ratio is 3:5 , and for ramaining coins this ratio is 7:5 .Find the ratio of gold and silver in new coins ?

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