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nth Term of A.P

If the number...

Question

If the number $3 k + 4, 7 k + 1$ and $12 k - 5$ are in A.P., then the value of $k$ is

2

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3

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4

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5

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Solution

The correct option is C $3$
Clearly
$(7 k + 1) - (3 k + 4) = (12 k - 5) - (7 k + 1)$
$\Rightarrow k = 3$

Suggest Corrections

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\frac{2 - x}{3} = \frac{2 y - 3}{3 k} = \frac{z - 4}{2}

\frac{2 - 2 x}{5 k} = \frac{y + 4}{2} = \frac{5 - z}{4}

k

k

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K

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3

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8 j - 3 k

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