A merchant mixes two varieties of tea, costing Rs. $50$ per kg and Rs. $60$ per kg, in the ratio $3 : 2$. If he sells the mixed variety at Rs. $60.50$ per kg, find his profit percentage.
Options:
- A: $12.5\%$
- B: $10\%$
- C: $15\%$
- D: $12\%$
Related Practice Questions:
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