- 04/15/2019 at 2:37 am #483551EduGorillaKeymasterSelect Question Language :
A gold biscuit of 11 kg contains only 82% gold and the rest is copper. It is alloyed with another gold biscuit and the resulting alloy has a mass of 28 kg and contains 90% of gold. Find the percentage of gold in the second biscuit.
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