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Coffee powder costing Rs 19 per kg must be mixed with coffee powder costing Rs 27 per kg to get a mixture worth Rs 26 per kg. How many kg of the cheaper coffee powder should be mixed with 56 kg of the dearer coffee powder?

1. Coffee powder costing Rs 19 per kg must be mixed with coffee powder costing Rs 27 per kg to get a mixture worth Rs 26 per kg. How many kg of the cheaper coffee powder should be mixed with 56 kg of the dearer coffee powder?

 

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