Three sets of rice x, y and z are sold for N15.00, N35.00 and N60.00 respectively per kg. It they are mixed in the ratio of 1: 3 : 2, what is the cast per kg of the mixture?
N45.00
N42.50
N40.00
N35.50
N25.80
Correct answer is C
No explanation has been provided for this answer.