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A grocer wants to mix nuts which sell for Rs 40 per kilo with nuts which sell Rs 90 per kilo in order to make a mixture which could sell for Rs 70 per kilo.How many kilos of each should be mixed to get a mixture of 630 kilos?

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  1. amount used from the Rs 40 --- x
    amount used from the Rs 90 --- 630-x

    40x + 90(630-x) = 70(630)
    40x + 56700 - 90x = 44100
    -50x= -12600
    x = 252

    state conclusions.

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  2. A grocer wants to mix nuts which sell for Rs.14.40 per kilo with nuts selling for Rs.22.80 per kilo in order to make a mixture which would sell for Rs.18 per kilo.How many kilos of Rs.22.80 per kilo nuts should be mixed with 40 kilos of Rs.14.40 per kilo nuts?

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