Given: Silver in an alloy = 37.5% Silver in an alloy = 117 gm Concept: To convert percentage into fraction divide it by 100 37.5% = 37.5/100 = 3/8 It means 3 part of the alloy is silver out of 8 part Calculation: According to question: 3 units = 117 gm ⇒ 1 unit = 39 ⇒ 8 units = 39 × 8 = 312 gm ∴ Other elements in an alloy = 312 – 117 = 195 gms