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

    Jan 21, 2012, 02:56 AM
    Quadratic equations
    A group of students is on sightseeing tour. The total fare is $129 and this is to be shared equally among the students. If two more students join the tour, each will pay $2 less. Find the original number of students in the group.
    Aurora2000's Avatar
    Aurora2000 Posts: 111, Reputation: 16
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    #2

    Jan 22, 2012, 05:39 AM
    Let be x the number of students: the original price $129 is to be equally divided, thus each student will pay $129/x. If there were 2 more students, thus x+2 participants, the per capita cost will be $2 less, thus $129/x-2. Thus you have

    and solve in x.
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