Question

If x is directly proportional to y and x = 18 when y = 6, find the value of x when y = 25.

Answer 1

The answer will be more than 0&1.1

Answer 2

Step-by-step explanation:

x is proportional to y, it means that as x changes the value of y also changes and vice-versa.

So, when y = 6 then the value of x = 18 so what will be the value of x when the value of y = 25?

The mathematical approach is here,

y = 6 x = 18

y = 25 x = ?

Now, we'll do cross multiplication,

$\sf \: consider \: this \: as \: \frac{6}{25} = \frac{18}{x}$

Where we'll multiply 6 by the unknown term x and the 25 by 18.

It'll become

6x = 25 × 18

6x = 450

x = 75

So, when y is 25 then x is 75.