In what proportion must tea worth 75 paise per packet be mixed with tea worth Rs 5.50 per packet so that the mixture may cost Rs 4.50 per packet?

3 : 11

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4 : 15

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15 : 11

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4 : 5

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None of the above

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Solution

The correct option is B 4 : 15
By method of alligation the required ratio is 4 : 15.

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how many kilos of tea worth rs 72 per kg should be mixed with 10 kg of tea worth rs 90 per kg to produce a mixture which will cost rs 78 per kg

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