SSAT Elementary Level Math : SSAT Elementary Level Quantitative (Math)

Study concepts, example questions & explanations for SSAT Elementary Level Math

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Example Questions

Example Question #1 : How To Find A Proportion

Sofia goes to the movies with \displaystyle \$24. She spends \displaystyle \$12 on her ticket and \displaystyle \$4 on food and drink.

What fraction of Sofia's original \displaystyle \$24 was not spent?

Possible Answers:

\displaystyle \frac{1}{6}

\displaystyle \frac{1}{4}

\displaystyle \frac{2}{5}

\displaystyle \frac{1}{8}

\displaystyle \frac{1}{3}

Correct answer:

\displaystyle \frac{1}{3}

Explanation:

Adding Sofia's expenses shows that she spent a total of \displaystyle 12 + 4 = 16 dollars. Subtracting this from the original amount of money she had gives the unspent portion: \displaystyle \$24 - \$16 = \$8

The ratio of the unspent portion to the original amount gives the fraction of the money that was not spent: \displaystyle \frac{8}{24} = \frac{1}{3}.

Example Question #21 : Numbers And Operations

\displaystyle \$75 sweater is on sale for \displaystyle \$45. What percentage of the original price has been discounted for the sale?

Possible Answers:

\displaystyle 30\%

\displaystyle 35\%

\displaystyle 15\%

\displaystyle 45\%

\displaystyle 40\%

Correct answer:

\displaystyle 40\%

Explanation:

Set up a proportion of the new price to the old price to see how they relate.

\displaystyle \frac{\$45}{\$75} = \frac{3}{5} of the original price

Subtract \displaystyle \frac{3}{5} from \displaystyle 1 to find the amount that was discounted. 

\displaystyle 1 - \frac{3}{5} = \frac{2}{5}

Convert \displaystyle \frac{2}{5} to a decimal by multiplying both the top and bottom of the fraction by \displaystyle 2, then convert to a percentage.

\displaystyle \frac{2}{5} \times\frac{2}{2}=\frac{4}{10}, which is equivalent to \displaystyle 0.4 or \displaystyle 40\%

Example Question #23 : Ratio And Proportion

Mary wants to enlarge a picture that she has in her office. The original picture is \displaystyle 5 cm (width) by \displaystyle 8 cm (length). What would be the length of the enlarged picture if the width is \displaystyle 10 cm?

Possible Answers:

\displaystyle 21\ cm

\displaystyle 15\ cm

\displaystyle 12\ cm

\displaystyle 16\ cm

Correct answer:

\displaystyle 16\ cm

Explanation:

To find the length of the enlarged picture, we must set up a proportion:

\displaystyle \frac{5}{10}=\frac{8}{x}

cross multiply:

\displaystyle 5x=80

Divide both sides by 5:

\displaystyle x=16

Example Question #1 : How To Find A Proportion

Solve for y:

\displaystyle \frac{y}{8} = \frac{5}{4}

Possible Answers:

\displaystyle 8

\displaystyle 9

\displaystyle 10

\displaystyle 12

\displaystyle 11

Correct answer:

\displaystyle 10

Explanation:

Multiply both sides by 8 to yield:

\displaystyle 8\times\frac{y}{8} = 8\times\frac{5}{4}

Therefore:

\displaystyle y = \frac{40}{4}

 

Therefore:

\displaystyle y = 10

Example Question #21 : Ratio And Proportion

Solve for the variable:

\displaystyle \frac{x}{6}=\frac{10}{12}

Possible Answers:

3

4

15

5

8

Correct answer:

5

Explanation:

Cross multiply: 

\displaystyle (x) \times 12=6\times10

\displaystyle 12x=60

Solve for x by dividing 60 by 12:

\displaystyle x=5

 

Example Question #21 : Ssat Elementary Level Quantitative (Math)

Solve for the variable:

\displaystyle \frac{5}{9}=\frac{x}{27}

Possible Answers:

\displaystyle 9

\displaystyle 5

\displaystyle 135

\displaystyle 45

\displaystyle 15

Correct answer:

\displaystyle 15

Explanation:
Cross multiply:
 
\displaystyle 5\times27=9\times x
 
\displaystyle 135=9x

Solve for \displaystyle x by dividing 135 by 9:

\displaystyle x=15

 

Example Question #22 : Ssat Elementary Level Quantitative (Math)

Solve for the variable:

\displaystyle \frac{3}{4}=\frac{6}{x}

Possible Answers:

\displaystyle 12

\displaystyle 10

\displaystyle 9

\displaystyle 8

\displaystyle 14

Correct answer:

\displaystyle 8

Explanation:

There are two ways to solve. First, you may see that the top numbers are related by multiplying by 2.

\displaystyle 3*2=6

This means that the bottom numbers must also be related by multiplying by 2.

\displaystyle 4*2=x

\displaystyle 8=x

The missing number is therefore 8.

The other way to solve is to cross multiply:

\displaystyle \frac{3}{4}=\frac{6}{x}

\displaystyle 3\times (x) = 4\times6

\displaystyle 3x = 24

Solve for \displaystyle x by dividing 24 by 3:

\displaystyle x = \frac{24}{3}=8

\displaystyle \frac{3}{4}=\frac{6}{8}

The answer is again 8.

Example Question #13 : How To Find A Proportion

Find the unknown value:  \displaystyle \frac{2}{3}= \frac{8}{x}

Possible Answers:

\displaystyle \frac{3}{16}

\displaystyle \frac{16}{3}

\displaystyle \frac{2}{3}

\displaystyle 12

\displaystyle \frac{1}{12}

Correct answer:

\displaystyle 12

Explanation:

To solve the proportion, cross multiply and find the value of the missing variable.

\displaystyle 2x=8\times3

\displaystyle 2x=24

Divide by \displaystyle 2 on both sides.

\displaystyle x=12

Example Question #14 : How To Find A Proportion

Solve:  \displaystyle \frac{3}{7}= \frac{10}{x}

Possible Answers:

\displaystyle \frac{30}{7}

\displaystyle \frac{7}{30}

\displaystyle \frac{21}{10}

\displaystyle \frac{3}{70}

\displaystyle \frac{70}{3}

Correct answer:

\displaystyle \frac{70}{3}

Explanation:

Solve by cross multipling the two fractions.

\displaystyle 3x=10\times7

\displaystyle 3x=70

Divide by \displaystyle 3 on both sides.

\displaystyle x=\frac{70}{3}

Example Question #21 : Ssat Elementary Level Quantitative (Math)

What is \displaystyle 10\% of \displaystyle 200?

Possible Answers:

\displaystyle 10

\displaystyle 5

\displaystyle 40

\displaystyle 2

\displaystyle 20

Correct answer:

\displaystyle 20

Explanation:

\displaystyle 10\% of \displaystyle 200 is calculated by multiplying .\displaystyle 10 by \displaystyle 200.

\displaystyle .10\times 200=20

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