What is 25% out of 120

I think the answer is 30

I assume, that the number 120 is 100% - because it's the output value of the task.

If 120 is 100%, so we can write it down as 120=100%.

We know, that x is 25% of the output value, so we can write it down as x=25%.

Now we have two equations:

1) 120=100%

2) x=25%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

120/x=100%/25%

Solution for what is 25% of 120:

120/x=100/25

(120/x) * x = (100/25) * x - we multiply both sides of the equation by x

120=4*x - we divide both sides of the equation by (4) to get x

120/4=x

30=x

x=30

The answer is: 25% of 120=30