[" An alloy of copper,silver and gold is "],[" found to have copper constituting the "],[" cep lattice.If silver atoms occupy the "],[" edge centres and gold "(15" present at ")/(" will have the ")],[" body centre.The alloy "],[" formula "],[" 1) "Cu_(4)Ag_(4)Au],[" 3) "Cu_(4)Ag_(3)Au]