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Algebra2...........

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Using the integers 2,3,4,5,
How many 3-digit odd numbers less than 300 can be formed if no repetition of digits is allowed?
Please explain and show work.

  • Algebra2........... -

    1st digit: 2
    last digit: 3,5

    So, there are 1*2*2 = 4 possibilities.

    Check:
    235
    245
    253
    254

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