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    Siustrulka's Avatar
    Siustrulka Posts: 33, Reputation: 1
    Junior Member
    		  
    #1

    Sep 27, 2007, 05:21 PM
    3 problems
    the mean median unique mode and range of a collection of eight integers are equal to 8. find the largest integer that can be an element of this collection.



    the digits 1,2,3,4,5,6,7,9 are used to form four two-digit prime numbers with each digt uded exactly once. What is the sum of these four primes?

    suppose that A,Band C are three numbers for which 1001C-2002A=4004 and 1001B=3003A = 5005. Find the average of the three numbers A,B, and C
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
    Ultra Member
    		  
    #2

    Sep 29, 2007, 04:41 AM
    the digits 1,2,3,4,5,6,7,9 are used to form four two-digit prime numbers with each digt used exactly once. What is the sum of these four primes?

    See here:

    Prime Number calculator - Next, previous, largest, least prime numbers calculation

    Play around with your given numbers.
    terryg752's Avatar
    terryg752 Posts: 197, Reputation: 4
    Junior Member
    		  
    #3

    Oct 9, 2007, 04:34 AM
    Quote Originally Posted by Siustrulka
    the mean median unique mode and range of a collection of eight integers are equal to 8. find the largest integer that can be an element of this collection.



    the digits 1,2,3,4,5,6,7,9 are used to form four two-digit prime numbers with each digt uded exactly once. what is the sum of these four primes?

    suppose that A,Band C are three numbers for which 1001C-2002A=4004 and 1001B=3003A = 5005. find the average of the three numbers A,B, and C
    1. Uniqe mode = 8 : So largest integer = 8

    3. Divide equations by 1001:

    C - 2A = 4, B = 3A = 5

    (C-2A) + B + 3A = 4 + 5 + 5 = 14

    A + B + C = 14

    Average = 14/3
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