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    haylee429's Avatar
    haylee429 Posts: 1, Reputation: 1
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    #1

    Oct 9, 2013, 05:16 AM
    Math story problem answers
    210 people went swimming at the local pool. Thirty people spent time in the shallow and deep ends of the pool. The lifeguard said that twice as many people swam in the deep end as in the shallow end of the pool. How many people swam in the deep end of the pool and how many people swam in the shallow part of the pool only?

    Answer-deep end-_______, shallow end-________

    Explain how you got your answer.___________________________________________ __________________________________________________ __________________________________________________ __________________________________________________ __________________________________________________ __________
    Celine91's Avatar
    Celine91 Posts: 51, Reputation: 9
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    #2

    Oct 11, 2013, 12:10 PM
    let s = number of people who swam in the shallow end only
    let d = number of people who swam in the deep end only

    since 30 swam in both deep and shallow ends then we eliminate them from the total.
    so 210 - 30 = 180 (total of people who either swam in shallow end only or deep end only)

    and it was given that d = 2 * s

    2 * s + s = 180
    3 * s = 180 then s = 60. And d = 120

    :)
    newland2010's Avatar
    newland2010 Posts: 5, Reputation: 1
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    #3

    Oct 27, 2013, 08:16 PM
    20 and 10
    Celine91's Avatar
    Celine91 Posts: 51, Reputation: 9
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    #4

    Oct 28, 2013, 09:12 AM
    newland2010, your comprehension was wrong! 30 swam in deep and shallow ends (BOTH). The question clearly asks for the number of people who swam in deep end ONLY and shallow end ONLY. my answer was very detailed!

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