If x : y = 2 : 5 , then find 3x : 5y.

6 : 5

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6 : 25

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2 : 3

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12 : 20

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Solution

The correct option is B
6 : 25

Given that x : y = 2 : 5.

$∴$ Let x = 2z and y = 5z

Now 3x = 3 $\times$ 2z

= 6z

and 5y = 5 $\times$ 5z

= 25z

$∴$ 3x : 5y = 6z : 25z

= 6 : 25

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Similar questions

If $\frac{(3 x + 5 y)}{(3 x - 5 y)} = \frac{7}{3}$ , find x:y.

\frac{(3 x + 5 y)}{(3 x - 5 y)} = \frac{7}{3}

x : y = 3 : 5

3 x + 4 y : 8 x + 5 y

If (3x + 5y)/(3x – 5y) = 7/3, find x:y.

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