Question

If 2:y = 12:30,than find the value oy y =?

Answer 1

Answer:

The value of y is 5.

Step-by-step explanation:

Given,

     $2:y = 12:30$

To find :- The value of y

 we can rewrite the above proportion as fraction,

         $2:y = 12:30\\ \\ \frac{2}{y}=\frac{12}{30}$

By cross multiplication numerator with denominator,

             $2 \cdot 30=12 \cdot y$

Multiplying 2 with 30 we get 60.

         $12y =60$

Dividing 60 by 12 we get 5.

$y=\frac{60}{12}=5$

The value of $y =5$