Find the value of x if 20:28 :: x:7.

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Solution

The correct option is B 5

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Similar questions

x + \frac{1}{x} = - 2

x^{7} + \frac{1}{x^{7}}

(x^{3} \times x^{7}) \div x^{12}

x

∣ ∣ ∣ ∣ \begin{matrix} x^{2} & x & 1 0 & 2 & 1 3 & 1 & 4 \end{matrix} ∣ ∣ ∣ ∣ = 28

|\begin{matrix} x^{2} & x & 1 \\ 0 & 2 & 1 \\ 3 & 1 & 4 \end{matrix}| = 28 .

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