Mangaluru, February 9 Prices of areca and coconut on Monday.Areca (per quintal)Old Areca: Rs 36,000 to Rs 53,500, model Rs 44,800.New Areca: Rs 30,000 to Rs 46,000, model Rs 32,000.Koka: Rs 25,000 to Rs 36,500 model Rs 30,800.Coconut (per thousand)1st quality: Rs 30,000 to Rs 40,000...