The expenses on rice - fish and oil of a family are in the ratio 12: 17: 3. The price of these articles is increased by 20% - 30% and 50% respectively. The total expenses of family on these articles are increased by:

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The expenses on rice - fish and oil of a family are in the ratio 12: 17: 3. The price of these articles is increased by 20% - 30% and 50% respectively. The total expenses of family on these articles are increased by:






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