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Rice 40 kg at Rs 30/kg is mixed with 20 kg at Rs 36/kg; the mix sells at Rs 36/kg. Profit?

A12.5%
B15%
C10%
D20%
Answer & Solution
Correct answer: A. 12.5%
Cost is 1200 + 720 = 1920 for 60 kg, i.e. Rs 32/kg; selling at 36 gives 4/32 = 12.5 percent.
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