Question

If x% of y is 20, then y =?​

Answer 1

Answer:

Y is equal to 4% of X.

Step-by-step explanation:

20% of X = Y

.20(X) = Y

.20X = Y

Y = .20X

Now, multiply both sides of the last equation by 20% = .20

(.20)Y = (.20)(.20X)

.20Y = [(.20)(.20)]X

.20Y = [.04]X

.20Y = .04X

Therefore, if 20% of X is equal to Y, then 20% of Y is equal to 4% of X.

Answer 2

Answer:

$20$% of $y$ is equal to $4$% of $x$.

Step-by-step explanation:

It is given that:

$x$% of $y$ is $20$.

That is:

$20$% of $x$ = $y$

$0.2x=y$

Hence, $y=0.2x$

Multiplying both sides above by $0.2$, that is $20$%

We get

$0.2y=0.2*0.2x$

$0.2y=0.04x$

Hence, $20$% of $y$ is $4$% of $x$.

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