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mind buggling...

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  • SVMAYOL
    1.ritchie is three times as old as viper. three years ago, ritchie is four times as old as viper. find the sum of their age 2.a water tank discharges 1 liter
    Message 1 of 2 , Mar 1, 2009
      1.ritchie is three times as old as viper. three years ago, ritchie is
      four times as old as viper. find the sum of their age

      2.a water tank discharges 1 liter per second of water.how long will it
      take to fill 6 gallons container?

      hi guys can u help me solve the problems above...thanks

      regards,
      svmayol
    • SVMAYOL
      oh..many thanks erhan... this one is tough... in a family of five children, what is the probability that the first three are girls? =)
      Message 2 of 2 , Mar 2, 2009
        oh..many thanks erhan...

        this one is tough...

        " in a family of five children, what is the probability that the first
        three are girls?"

        =)
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