Question

If 42 : x :: 7 : 21 ​

Answer 1

Step-by-step explanation:

42:x::7:21

=>42/x=7/21

=>x=(42×21)/7

=>x=126

so 42:126::7:21

Answer 2

$\huge\underline{\underline{\purple{\mathcal{Answer↡}}}}$

42 : x : : 7 : 21

$\mathcal\orange{ Product \: of \: means=Product \: of \: extremes}$

7 × x = 42 × 21

7x = 882

x = $\frac{882}{7} = 126$

$\mathcal\pink{ I \: Hope \: it \: helps \: u.}$

$\Huge\fbox{\color{red}{@NehaNagal}}$