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    burgess87's Avatar
    burgess87 Posts: 40, Reputation: 2
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    #1

    Jul 10, 2014, 05:01 AM
    A problem on ratios
    Required help to solve math homework problem

    In what ratio must rice at Rs. 9.30 per kg be mixed with rice at Rs.10.80 per kg so that the mixture be worth Rs.10 per kg?

    Thanks
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Jul 10, 2014, 07:07 AM
    Let A = number of Kg of the 9.30 product and B = number of Kg of the 10.80 product. Then the total price is Ax9.30 + Bx10.80, and the total weight of product is A+B. So you want the average price to be 10.00 = ( Ax9.30 + Bx10.80)/(A+B). I suggest you divide through by B and solve for the ratio A/B that satisfies this.
    burgess87's Avatar
    burgess87 Posts: 40, Reputation: 2
    Junior Member
    		  
    #3

    Jul 18, 2014, 04:30 AM
    Thanks ebaines for your reply
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