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

    Jan 11, 2008, 11:25 AM
    quadratic equations
    Hai please help me to solve this problem
    Some students arranged a picnicthe budget for the food was Rs 240. Because four students of the group failed to go the cost of food to each students got increased by Rs 5 how many students went for the picnic?
    Please help me
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
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    #2

    Jan 11, 2008, 03:30 PM
    Let the number of people be N and the cost each be C.

    Then, originally, we have NC=240

    But, 4 bail out and the cost raises by 5 each. So, we have (N-4)(C+5)=240

    Now, you have two equations with two unknowns. Solve for N (and C) and your finished.
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