The cost (per kg) of 3 qualities of rice are 45, 42 and 35 respectively.

What will be the cost (per kg) of a mixture of 10 kg of first, 8 kg of second and 7 kg of third?

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The cost (per kg) of 3 qualities of rice are 45, 42 and 35 respectively.

What will be the cost (per kg) of a mixture of 10 kg of first, 8 kg of second and 7 kg of third?

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