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A miller was contracted to make porridge flour to support a feeding program. He mixed Millet, Sorghum, Maize and Omena in the ration 1 : 2 : 5 : 1. The cost per kilogram of Millet was ksh 90, Sorghum Ksh 120, Maize Ksh 30 and Omena Ksh 150.
Calculate:
(a) The cost of one kilogram of the mixture;
(b) The selling price of 1 kg of the mixture if the miller made a 30% profit.