# Top 10 PSAT 10 Math Practice Questions

Studying for your PSAT 10 Math test? The surest way to succeed on the PSAT 10 Math test is to work through as many PSAT 10 Math practice questions as possible. Here are the top 10 PSAT 10 Math practice questions to help you or your students review the most important PSAT 10 Math topics. These PSAT 10 Math practice questions are designed to cover mathematics concepts and topics that are found on the actual test. The questions have been fully updated to reflect the latest 2021 PSAT 10 guidelines. Answers and full explanations are provided at the end of the post.

Help your students start their PSAT 10 Math test prep journey right now with these sample PSAT 10 Math questions.

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**PSAT 10 Math Practice Questions**

1- A taxi driver earns \($9\) per \(1\)-hour work. If he works \(10\) hours a day and in \(1\) hour he uses \(2\)-liters petrol with price \($1\) for \(1\)-liter. How much money does he earn in one day?

A. \($90\)

B. \($88\)

C. \($70\)

D. \($60\)

2- Five years ago, Amy was three times as old as Mike was. If Mike is \(10\) years old now, how old is Amy?

A. \(4\)

B. \(8\)

C. \(12\)

D. \(20\)

3- What is the solution of the following system of equations?

\(\begin{cases}\frac{-x}{2}+ \frac{y}{4} = 1 \\ \frac{-5y}{6}+2x = 4 & \end{cases}\)

A. \(x=48,y=22\)

B. \(x=50,y=20\)

C. \(x=20,y=50\)

D. \(x=22,y=48\)

4- What is the length of \(AB\) in the following figure if \(AE=4, CD=6\), and \(AC=12\)?

A. \(3.8\)

B. \(4.8\)

C. \(7.2\)

D. \(24\)

5- If a and b are solutions of the following equation, which of the following is the ratio \(\frac{a}{b}\)? \((a > b)\)

\(2x^2-11x+8=-3x+18\)

A. \(\frac{1}{5}\)

B. \(5\)

C. \(-\frac{1}{5}\)

D. \(-5\)

6- How many tiles of \(8 cm^2\) are needed to cover a floor of dimension \(6 cm\) by \(24 cm\)?

A. \(6\)

B. \(12\)

C. \(18\)

D. \(24\)

7- Which of the following is the solution to the following inequality?

\(2x+4>11x-12.5-3.5x\)

A. \(x<3\)

B. \(x>3\)

C. \(x≤4\)

D. \(x≥4\)

8- If \(a, b\) and \(c\) are positive integers and \(3a = 4b = 5c\), then the value of \(a + 2b + 15c\) is how many times the value of \(a\)?

A. \(11.5\)

B. \(12\)

C. \(12.5\)

D. \(15\)

9- A company pays its employer \($7000\) plus \(2\%\) of all sales profit. If \(x\) is the number of all sales profit, which of the following represents the employer’s revenue?

A. \(0.02x\)

B. \(0.98x-7000\)

C. \(0.02x+7000\)

D. \(0.98x+7000\)

10- \(\frac{5x^2+75x-80}{x^2-1} = \)?

A. \(\frac{5x+75}{ x-1} \)

B. \(\frac{x+16}{ x+1} \)

C. \(\frac{5x+80}{ x+1} \)

D. \(\frac{x+15}{ x-1} \)

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## Answers:

1- **C**

\( $9×10=$90\)

Petrol use: \(10×2=20\) liters

Petrol cost: \(20×$1=$20\)

Money earned: \($90-$20=$70\)

2- **D**

Five years ago, Amy was three times as old as Mike. Mike is \(10\) years now. Therefore, \(5\) years ago Mike was \(5\) years.

Five years ago, Amy was: \(A=3×5=15 \)

Now Amy is \(20\) years old: \(15 + 5 = 20\)

3- **D**

\(\begin{cases}\frac{-x}{2}+ \frac{y}{4} = 1 \\ \frac{-5y}{6}+2x = 4 & \end{cases}\)

Multiply the top equation by \(4\). then:

\(-2x+y=4\)

\(\frac{-5y}{6} + 2x = 4\)

Add two equations.

\( \frac{1}{6}y=8→y=48 \)

plug in the value of y into the first equation \(→(x=22)\)

4- **B**

Two triangles ∆BAE and ∆BCD are similar. Then:

\(\frac{AE}{CD} = \frac{AB}{BC}\)

\(\frac{4}{6} = \frac{x}{12}\)

then:

\(48-4x=6x→10x=48→x=4.8\)

5- **D**

\(2x^2-11x+8=-3x+18→2x^2-11x+3x+8-18=0→2x^2-8x-10=0\)

\(→2(x^2-4x-5)=0→\) Divide both sides by \(2\). Then:

\(x^2-4x-5=0\), Find the factors of the quadratic equation.

\(→(x-5)(x+1)=0→x=5\) or \( x=-1\)

\(a>b\), then: \(a=5\) and \(b=-1\)

\(\frac{a}{b} = \frac{5}{-1}= -5 \)

6- **C**

The area of the floor is: \(6 cm\) \(×\) \(24 cm = 144 cm\)

The number is tiles needed \(= 144 ÷ 8 = 18\)

7- **A**

\(2x+4>11x-12.5-3.5x→\) Combine like terms:

\(2x+4>7.5x-12.5$$→\) Subtract \(2x\) from both sides: \(4>5.5x-12.5\)

Add \(12.5\) both sides of the inequality.

\(16.5>5.5x\)

Divide both sides by \(5.5\).

\(\frac{16.5}{5.5}>x→x<3\)

8- **A**

\(3a=4b→b=\frac{3a}{4}\) and \( 3a=5c→c= \frac{3a}{5}\)

\(a+2b+15c=a+ (2× \frac{3a}{4})+(15× \frac{3a}{5})=a+1.5a+9a=11.5a\)

9- **C**

\(x\) is the number of all sales profit and \(2\%\) of it is:

\(2\%×x=0.02x\)

Employer’s revenue: \(0.2x+7000\)

10- **C**

First, find the factors of numerator and denominator of the expression. Then simplify.

\(\frac{5x^2+75x-80}{x^2-1}=\frac{5(x^2+15x-16)}{(x-1)(x+1)}\)

\(\frac{5(x+16)(x-1)}{ (x-1)(x+1)}=\frac{5(x+16)}{ (x+1)} \)

\(=\frac{(5x+80)}{ (x+1)}\)

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