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Is the integer x divisible by 24 ?

This topic has 1 expert reply and 0 member replies

Is the integer x divisible by 24 ?

Post Thu Sep 14, 2017 1:12 pm
Elapsed Time: 00:00
  • Lap #[LAPCOUNT] ([LAPTIME])
    Is the integer x divisible by 24 ?

    (1) x is divisible by 8
    (2) x is divisible 6

    OA is C.

    How can I make this DS question? Is the statement (1) sufficient?

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    Post Thu Sep 14, 2017 10:34 pm
    Vincen wrote:
    Is the integer x divisible by 24 ?

    (1) x is divisible by 8
    (2) x is divisible 6

    OA is C.

    How can I make this DS question? Is the statement (1) sufficient?
    Statement 1: x is divisible by 8

    For x to be divisible by 24, it must be divisible by 8 as well as 3. However, we do not know if x is also divisible by 3 too. Insufficient.

    Statement 2: x is divisible by 6

    For x to be divisible by 24, it must be divisible by 6 as well as 4. However, we do not know if x is also divisible by 4 too. Insufficient.

    Statement 1 & 2:

    The LCM of 8 and 6 is 24, thus x is divisible by 24. Sufficient.

    The correct answer: C

    Hope this helps!

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    Thanked by: Vincen

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