If 15 : 20 : : 12 : 16
then using cross-multiplication, we get
15 x = x 12

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Solution

The correct option is C 20
If 15 : 20 : : 12 : 16 then we can write it as
$\frac{15}{20}$ = $\frac{12}{16}$
By cross-multiplication, we get
$15$ x $16$ = $20$ x $12$
$\Rightarrow$ 240 = 240

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Similar questions

Solve each of the following systems of equations by using the method of cross multiplication:

$\frac{x}{6} + \frac{y}{15} = 4, \frac{x}{3} - \frac{y}{12} = \frac{19}{4} .$

Multiply 9x²+25y²+15xy+12x-20y+16 by 3x-5y-4 using suitable identity

$15$	$16$	$18$	$13$	$11$
$x$	$20$	$12$	$22$	$23$

16.5

x

x - y = 12

x + y = 14

x

y

x + y = 15

x - y = 3

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