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7 kg of rice costing Rs. 280 per kg is mixed with 9 kg of rice costing Rs. 240 per kg. The average price

7 kg of rice costing Rs. 280 per kg is mixed with 9 kg of rice costing Rs. 240 per kg. The average price per kg of the mixed rice is : 1. Rs. 189.5 Rs. 240 Rs. 257.5 4. Rs. 238.5 None of these 2. 3. 5.

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