Mangaluru, February 18 Prices of betel nuts and coconuts on Wednesday.Betel Nuts (per quintal)Old Betel Nuts: Rs 36,000 to Rs 55,000, model Rs 45,000.New Betel Nuts: Rs 30,000 to Rs 48,500, model Rs 32,000.Koka: Rs 25,000 to Rs 37,000, model Rs 31,000.Coconuts (per thousand)1st...