Question

Calculate the weight and the percentage of zinc in
the zinc-copper alloy being given that the latter's
alloy with 3 kg of pure zinc contains 90 per cent of
zinc and with 2 kg of 90% zinc alloy contains 84%
of zinc.
(a) 2.4 kg or 80%
(b) 1.4 kg or 88%
(C) 3.4 kg or 60%
(d) 7.4 kg or 18%​

Answer 1

Answer:

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