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    archanadesh's Avatar
    archanadesh Posts: 1, Reputation: 1
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    #1

    Dec 26, 2011, 11:26 PM
    Help me solve this with quadratic equations
    Cost of bananas is increased by Re.1 per dozen. One can get 2 dozen less for Rs.840.Find the original cost of one dozen bananas?
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Dec 27, 2011, 12:14 AM
    I'm having a hard time understanding your question, plus charging higher costs per dozen for more bananas doesn't really make sense... One would rather charge less for buying in larger bulk.
    abhakohale's Avatar
    abhakohale Posts: 1, Reputation: 2
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    #3

    May 14, 2012, 04:23 AM
    let original price = Rs. X...

    bananas that can be bought = 840 / x...

    increased price = Rs. (x + 1)...

    bananas that can be bought with the increased price = 840 / (x +1)...

    As,
    840/x - 840/x+1=2

    By solving this equation we get
    original price = Rs. 20 (ans)...
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