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hba Group Title

How many 2 digit number satisfy the following conditions: The units digit is smaller than the tens digit :

  • one year ago
  • one year ago

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  1. hba Group Title
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    50 45 35 30

    • one year ago
  2. hba Group Title
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    @experimentX Is C the answer.

    • one year ago
  3. experimentX Group Title
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    first and the last

    • one year ago
  4. hba Group Title
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    What about the third one ?

    • one year ago
  5. experimentX Group Title
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    5 > 3

    • one year ago
  6. chihiroasleaf Group Title
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    I think you should find the possibilities, for example, if the tens digit is 1, so there is only one number, if the tens digit is 2, there are 2 possibilities, and so on...

    • one year ago
  7. hba Group Title
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    Thank you.

    • one year ago
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