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14 August, 18:52

15. A) I am a number less than 50. When divided by 5, my remainder is 4.

Who am I? B) What are the other possible answers?

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Answers (1)
  1. 14 August, 22:05
    0
    A) The number is 49

    B) The other possible answers are 9, 14, 19, 24, 29, 34, 39, 44

    Step-by-step explanation:

    * Lets explain how to solve the problem

    - The numbers divisible by five must have unit digits of zero or five

    # Ex: 5, 10, 45, 90 numbers divisible by five

    - If we need numbers divided by five and have reminder four we will

    add 4 to the unit digits zero and five, then the unit digits of these

    numbers will be four or nine

    # Ex: 9, 14, 49, 94 have remainder four when they divided by five

    * Lets solve the problem

    - The number is less than 50

    ∵ The numbers less than 50 and divisible by 5 are:

    5, 10, 15, 20, 25, 30, 35, 40, 45

    ∵ The remainder is 4

    - We will add all the numbers above by 4

    ∴ The numbers that divided by 5 and have a remainder 4 are:

    9, 14, 19, 24, 29, 34, 39, 44, 49

    A) The number is 49

    B) The other numbers are 9, 14, 19, 24, 29, 34, 39, 44
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