1.

An alloyof the alloy.is made of 25on and the rest being zinc. Find the mass of zinc in 720 gm13.is made of 25% copper, 30% ir

Answer»

25% copper 30% iron so 100-25-30=45% zincnow alloy is of 720 gm so weight of zinc=(720×45)/100=324 gm



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