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HCF of k, 2k, 3k, 4k, and 5k is...

HCF of k, 2k, 3k, 4k, and 5k is

A

k

B

`k^(2)`

C

`k^(5)`

D

5k

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Knowledge Check

  • Let k be an integer such that the triangle with vertices (k, -3k), (5, k) and (-k, 2) has area 28 sq units. Then, the orthocentre of this triangle is at the point

    A
    `(2,(1)/(2))`
    B
    `(2,-(1)/(2))`
    C
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    D
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    A
    `7/12`
    B
    `1/36`
    C
    `1/6`
    D
    `23/36`

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