A shopkeeper bought 30 kg of wheat at the rate of Rs 45 per Kg. He sold 40% of the total quantity at the rate of Rs 50 per Kg. Approximately, at what price per Kg should he sell the remaining quantity to make 25 per cent overall profit?
1. Rs 54
2. Rs 52
3. Rs 50
4. Rs 60
1. Rs 54
2. Rs 52
3. Rs 50
4. Rs 60