6 : 7 = 18 : ?

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Solution

The correct option is C 21
$6 : 7 = 18 : x \Rightarrow \frac{7 \times 18}{6} = x \Rightarrow x = 21$

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Similar questions

Verify the following:

(a)

(b)

18(7-(4))+(-6)

Verify the following:

(i) $18 \times [9 + (- 7)] = 18 \times 9 + 18 \times (- 7)$

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\sqrt{5^{2} \times 14 - 6 \times 7 + (4)^{?}} = 18

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