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Let total marks obtained by both of them is x and y respectively. x – y = 16 And, x = 0.53 × (x + y) x = 0.53 × (16 + y + y) x = 0.53 × (16 + 2y) x = 8.64 + 1.08y 16 + y = 8.64 + 1.08y 0.08y = 7.36 y = 92 x = 92 + 16 = 108