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Let the cost of gold=k (rs/gm) (k+90)*28=8760+7200 K=480rs/gm | 🍁Ariτнмєτic Maths🍁

Let the cost of gold=k (rs/gm)

(k+90)*28=8760+7200
K=480rs/gm
Cost of gold

By opt..
Wt of Au=16gm
Ag=12gm,