SSAT Middle Level Quantitative › How to find percentage
What percent (%) of 50 is 30?
60%
30%
166%
50%
40%
The original number in this problem is 50 and you must find the percentage of 30 from 50.
Another way to view this problem is what percentage of the original 50 equals 30.
Let x equal the percentage:
50(x) = 30
50x = 30
In order to change the decimal 0.6 to a percentage multiply by 100:
0.6 x 100 = 60%
A store normally sells a certain coat for $40. For the holidays it offers a sale where the new price of the coat is now $30. What percent discount is the store selling the coat for?
discount
discount
discount
discount
discount
The coat is $10 cheaper than normal.
The above hexagon is divided into triangles of equal size. What percent of the hexagon is shaded in?
7 of the 12 triangles - of the hexagon - is shaded in; this is
of the hexagon.
, so
What is the decimal form of 42.5%?
This question is asking you to convert the percent into a decimal. When doing this, you must move the decimal point two spaces to the left. The answer is
is
of
.
is 2.5 % of
.
What percent of is
?
For the sake of simplicity, since this reasoning is independent of the actual value of , we will assume that
. Then
is
of 100, or simply
, and
is 2.5% of 100, or simply 2.5. To find out what percent
is of
, evaluate:
If out of
students have contact lenses, what percentage of students have contact lenses?
percent
percent
percent
percent
percent
When dividing by
, the reduced form is:
is the equivalent of
percent, which is therefore the correct answer.
is 20% of
and
of
.
What percent of is
?
20% of a number is of that number, so
. Equivalently,
of a number is
of that number, so
. Equivalently,
To find out what percent is of
, evaluate:
.
The above rectangle is divided into squares of equal size. What percent of the rectangle is shaded in?
8 of the 10 squares - of the rectangle - is shaded in, so
of rectangle is shaded.
What percent of the above figures are circles?
There are twelve figures, six of which are circles. This is
of the figures.
is 30% of
and 60% of
.
What percent of is
?
is 30% of
, so
is 60% of
, so
To determine what percent of
is, evaluate: