how to figure out ? % of 25=20
and
25% of ? = 7
25x = 20
x = 20/25
x = 0.8 = 80%
0.25x = 7
x = 7/0.25
x = 28
28
To figure out the percentage in both of these scenarios, we can use a basic formula:
Percentage = (Part / Whole) * 100
Let's apply this formula to the given examples:
1. % of 25 = 20:
In this case, we know the part (20) and the whole (25). To find the percentage, we can use the formula:
Percentage = (20 / 25) * 100
Percentage = 0.8 * 100
Percentage = 80%
Therefore, 20 is 80% of 25.
2. 25% of ? = 7:
In this scenario, we know the percentage (25%) and the part (7), but we need to find the whole. Rearranging the formula, we get:
Whole = (Part / Percentage) * 100
Substituting the given values:
Whole = (7 / 25%) * 100
Whole = (7 / 0.25) * 100
Whole = 28 * 100
Whole = 280
Therefore, 25% of 280 equals 7.
Remember, to find the unknown variable, isolate it in the formula and perform the necessary calculations to find the value.