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March 25, 2017

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During a trip, Sally spent 1/4 of her money on some clothes. She also spent 1/3 of the remaining money on a bag. She then bought a camera which cost $15 more than the bag and had $95 left. How much money did Sally have at first?

  • maths - ,

    at the start, she had x dollars.
    clothes: x/4
    bag: (3x/4)/3 = x/4
    camera: bag+15 = x/4+15
    remainder: 95

    x - x/4 - x/4 - (x/4+15) = 95
    x/4 - 15 = 95
    x/4 = 110
    x = 440

    So, she started out with $440
    clothes: 110, now has 330
    bag: 1/3(330) = 110, now has 220
    camera: 125, now has 95

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