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The expenses on rice, fish and oil of a family are in the ratio 12 : 17 : 3. The prices of these articles are increased by 20%, 30% and 50% respectively. The total expenses of family on these articles are increased by `7 1/8%` b. `14 1/8%` c. `28 1/8%` d. `6 1/8%\ `

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