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Sugar costing Rs 13 per kg must be mixed with sugar costing Rs 21 per kg to get a mixture worth Rs 19 per kg. How many kg of the cheaper sugar should be mixed with 33 kg of the dearer sugar?

1. Sugar costing Rs 13 per kg must be mixed with sugar costing Rs 21 per kg to get a mixture worth Rs 19 per kg. How many kg of the cheaper sugar should be mixed with 33 kg of the dearer sugar?

 

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