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What is the HCF of 12, 18, 21?...

What is the HCF of 12, 18, 21?

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Knowledge Check

  • What is the HCF of 21, 84 and 49 ?

    A
    A)1
    B
    B)7
    C
    C)21
    D
    D)3

  • What is the HCF of (4)/(9),(10)/(21)" and "(20)/(63) ?

    A
    `(4)/(189)`
    B
    `(2)/(63)`
    C
    `(6)/(63)`
    D
    None of these

  • Find the HCF and LCM of 12, 15, 18, 27

    A
    3 , 540
    B
    3 , 270
    C
    3, 54
    D
    none of these

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