Question

The value of y is directly proportional to the value of x. If y = 180 when x = 50, the value of y when x = 25?​

Answer 1

Answer: y = 90

Explanation:

Since x and y are proportional, when x =25 (which is 50 divided by 2), y would be 90 since 90 is 180 divided by 2.

Answer 2

`\LARGE{ \underline{ \red{ \rm{Required \: answer:}}}}`

When two numbers or quantities are Directly proportional to each other, their ratio is constant or we can write is as:

`\boxed{ \rm{ (x)/(y) = constant}} \implies \boxed{ \rm{ (x1)/(y1) = (x2)/(y2) }}`

GiveN:

• When x = 50, y = 180

To FinD:

• Value of y when x = 25.....?

Step-wise-Step Explanation:

According to the relation between two numbers which are directly proportional to each other:

⇒ x1 / y1 = x2 / y2

Plugging the given values:

⇒ 50 / 180 = 25 / y2

Cross multiplying,

⇒ y2 = 180 × 25 / 50

⇒ y2 = 90

Thus, value of y when x = 25 is 90.