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Maths Problem

weighing machineMaths Problem - 23 July

The sum of a mother, her baby and her dog weight is 170 pounds.

How much does the baby weigh if the mother weighs 100 pounds more than the combined weight of the baby and the dog,and the dog weighs 60 percent less than the baby?

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8 comments:

  1. Mom 100

    Baby 50

    Dog 20

    ReplyDelete
  2. mom = 135

    baby = 25

    dog = 10

    .....☺

    ReplyDelete
  3. let m+b+d=170 b+d+100+b+d=170

    m-100=b+d 2(b+d)=70

    d=b-6b/10 b+d=35

    =4b/10 b+4b/10=35

    14b/10=35

    b=25

    ReplyDelete
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    ReplyDelete
  5. 25 lbs.
    Mother weighs 135 pounds
    Dog weighs 10 pounds.

    40 percent of 25 = 10
    135 - 25 - 10 = 100
    10 + 25 + 135 = 170

    ReplyDelete