A dealer buys dry fruits at Rs. 100, Rs. 80, and Rs. 60 per kilogram. He mixes them in the ratio 3:4:5 by weight and sells at a profit of 50%. At what price per kilogram does he sell the dry fruits?
Choose the correct option
A) Rs. 80 B) Rs. 100 C) Rs. 95 D) None of these E) Cannot be determined
Solution: Let the dealer buys 3 kg, 4 kg and 5 kg.   Price of total dry fruits = 3*100+4*80+5*60 = Rs. 920.   SP = 920 + 50% of 920 = 1380.   Hence,   Price of mix dry fruits per kg = 1380/12 = Rs. 115.   Answer: Option None of these
<result>D</result>
A dealer buys dry fruits at Rs. 100, Rs. 80, and Rs. 60 per kilogram. He mixes them in the ratio 3:4:5 by weight and sells at a profit of 50%. At what price per kilogram does he sell the dry fruits?