60 kg of certain variety of sugar at Rs 32 per kg is mixed with 48 kg of another variety of sugar and the mixture is sold at the average price of Rs 28 per kg. If there be no profit or loss due to the new sale price, then the price of the second variety of sugar is: 1. Rs 23 per kg 2. Rs 83 per kg 3. Rs 43 per kg 4. Rs 28 per kg 5. None of these