25 is what percent of 1616 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 1616 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 1616, so we can write it down as 100%=1616.
4. We know, that x% equals 25 of the output value, so we can write it down as x%=25.
5. Now we have two simple equations:
1) 100%=1616
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:
100%/x%=1616/25
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 25 is what percent of 1616

100%/x%=1616/25
(100/x)*x=(1616/25)*x       - we multiply both sides of the equation by x
100=64.64*x       - we divide both sides of the equation by (64.64) to get x
100/64.64=x
1.5470297029703=x
x=1.5470297029703

now we have:
25 is 1.5470297029703% of 1616