The price is 1 kg slivochno oils 1200 that. what cost half a kilogram creamy masla200g butter

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Let's make proportions of 1 kg =1000 g 1/2 kg = 500 g if the prices in rubles, then 1) 1000 r 500 g - x r x =1200*500/1000=600 r 2) 1000 r 200 g - x r x =1200*200/1000=240 r
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Answer add