Question
A mixture of Silver and Nickel contains 25% Silver. If
10 kg of Silver is added, then Silver becomes 50% of the Nickel. Find the initial quantity of Silver in the mixture.Solution
Let, quantity of Silver initially be 1x kg Then, quantity of Nickel initially = 3x kg Now, Silver after adding 10 kg = x + 10 kg So, (x + 10) / 3x = 1 / 2 Cross-multiply: 2x + 20 = 3x x = 20 Therefore, quantity of Silver initially = 1x = 20 kg
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