What is the cost of 100g of rice at 95p per half kg

1 kg= 1000g
threfore 100g=100/1000 kg
                       =0.1 kg
95p= 1/2 kg ...1/2 kg=0.5 kg
; 0.5=95
0.1=? ; (0.1*95)/0.5
           =19p

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