All SAT Math Resources
Example Questions
Example Question #1 : Other Percentage
What percent of 250 is 20?
Verbal cues include "of" and "is." Of means multiplication and is means equals
The equation to solve becomes so
Example Question #11 : How To Find Percentage
What number is 30% of 90?
Verbal cues include "is" and "of." "Is" means equals and "of" means multiplication.
So the equation to solve becomes
Example Question #12 : How To Find Percentage
If the length of a rectangle is increased by 50% and with width of the same rectangle is decreased by 50%, what is the effect on the area of the rectangle?
It is decreased by 50%
It is increased by 25%
It is unchanged
It is increased by 50%
It is decreaed by 25%
It is decreaed by 25%
This is a good question to use random numbers. Lets use 100 and 10 as the lengths. That means the area = 100 x 10 = 1000
If we increase the length of the side measuring 100 by 50% = 150
If we decrease the length of the other side 50% = 5
Area = 150 x 5 = 750
We see that the area decreased by 250 or 25% decrease in area!
Example Question #13 : How To Find Percentage
If 80 percent of x is 200, what is 60 percent x?
175
250
200
225
150
150
Example Question #14 : How To Find Percentage
Seventeen percent of some number is 34. What is this number?
None of the available answers
The algebraic expression is:
Example Question #11 : Other Percentage
What number is 125% of 60?
60
66
80
90
75
75
Translate this into a mathematical equation:
x = 1.25 * 60
x = 75
Example Question #16 : Other Percentage
If 10% of is equal to 25% of , and , what is the value of ?
Find 25% of :
10% of is equal to 4. Therefore, .
Divide both sides by 0.1 to find that .
Example Question #31 : Percents
There are registered students in the math club. Students are deciding what activity they could do for their end of semester event. They have three choices: rock climbing, bowling, or outdoor laser tag. students vote for rock climbing, students vote for bowling, and students vote for outdoor laser tag.
What percent of students did not vote?
The number of students who did not vote is:
The percent of students who did not vote is therefore:
of the students did not vote.
Example Question #111 : Percentage
Joaquin is running for Prom King. If he receives of the votes from a senior class of students, and of the votes from a junior class of students, how many votes did he receive in total?
First, we find how many seniors voted for him:
0.30 * 200 = 60 seniors
Then we find how many juniors using the same method
0.60 * 250 = 150 Juniors
Finally, we add the two together
60 + 150 = 210 students total
Example Question #271 : Arithmetic
13 is what percent of 25?
To solve this problem, we should set up the following proportion
where x is the percentage we are looking for.
To solve, simply cross multiply and solve for x.
Therefore, our answer is 52%.