IBPS SO Prelims Exam Model Paper 9

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Question : 130 of 150
 
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A shopkeeper, expert in selling adulterated items, mixes 1 kg of grinded white sand in a sac of rice and then the sachas a cost-price of Rs. 25 per kg. If the actual cost of rice is Rs. 25.50, in what ratio did he mix sand with rice?
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