Subject :IMO Class : Class 8
A grocer buys 80 kg of rice at ₹ 13.50 per kg and mixes it with 120 kg of rice available at ₹ 16 per kg. At what rate per kg should he sell the mixture to gain 20% on the whole?
A₹ 12
B₹ 18
C₹ 15
D₹ 16