If x and y vary directly, and x = 10 when y = 3, what will be the value of x when y = 9?

x = a0

 The required value of x is 30.

Step-by-step explanation:  Given that the variables x and y varies directly. And, x = 10 when y = 3.

We are to find the value of x when y = 9.

Given that x and y varies directly. So, we have

When x = 10, y = 3, then

So, the relation between x and y will be

Therefore, when y = 9, then

Thus, the required value of x is 30.

560

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