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HSPT Quantitative : Number Series*

Study concepts, example questions & explanations for HSPT Quantitative

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6 Diagnostic Tests 55 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

Example Question #91 : Number Series*

What number should come next in this series?

$\displaystyle 56,28,14,7,$___

Possible Answers:

$\displaystyle 3$

$\displaystyle 4$

3.5 $\displaystyle 3.5$

4.5 $\displaystyle 4.5$

Correct answer:

3.5 $\displaystyle 3.5$

Explanation:

The pattern is to divide by $\displaystyle 2$ each time. The last operation is $7\div2=3.5$ $\displaystyle 7\div2=3.5$

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Example Question #92 : Number Series*

What number should come next in this series?

$\displaystyle 62,57,47,42,32,27,$__

Possible Answers:

$\displaystyle 17$

$\displaystyle 22$

$\displaystyle 12$

$\displaystyle 37$

Correct answer:

$\displaystyle 17$

Explanation:

The pattern is to subtract $\displaystyle 5$, then subtract $\displaystyle 10$. The last operation is $\displaystyle 27-10=17$

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Example Question #93 : Number Series*

Waht number should come next in this series?

$\displaystyle 1,3,9,27,33,99,$___

Possible Answers:

$\displaystyle 96$

103 $\displaystyle 103$

105 $\displaystyle 105$

106 $\displaystyle 106$

Correct answer:

105 $\displaystyle 105$

Explanation:

The pattern is to multiply by $\displaystyle 3$, then add $\displaystyle 6$. The last operation is $\displaystyle 99+6=105$

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Example Question #94 : Number Series*

What number should fill in the blank in this series?

5,15, $\displaystyle 5,15,$___$\displaystyle ,135,405$

Possible Answers:

$\displaystyle 35$

$\displaystyle 30$

$\displaystyle 45$

$\displaystyle 25$

Correct answer:

$\displaystyle 45$

Explanation:

The pattern is to multiply by $\displaystyle 3$ each time. The operation before the blank is $15\cdot3=45$ $\displaystyle 15\cdot3=45$

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Example Question #95 : Number Series*

What number should fill in the blank in this series?

$\displaystyle 2,.05,4,.05,8,.05,$__ ,.05 $\displaystyle ,.05$

Possible Answers:

$\displaystyle 16$

$\displaystyle 14$

$\displaystyle 12$

$\displaystyle 10$

Correct answer:

$\displaystyle 16$

Explanation:

The pattern for this series is to multiply by $\displaystyle 2$ each time:

2,4,8, $\displaystyle 2,4,8,$

But then the number $\displaystyle .05$ is inserted in between each element. Ignore these to see the pattern.

The last operation is $8\cdot2=16$ $\displaystyle 8\cdot2=16$

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Example Question #96 : Number Series*

What number should come next in this series?

$\displaystyle 46,39,32,$___ ,18 $\displaystyle ,18$

Possible Answers:

$\displaystyle 11$

$\displaystyle 25$

$\displaystyle 24$

$\displaystyle 21$

Correct answer:

$\displaystyle 25$

Explanation:

The pattern is to subtract $\displaystyle 7$ each time. The operation before the blank is 32-7=25 $\displaystyle 32-7=25$

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Example Question #97 : Number Series*

What number should come next in this series?

$\displaystyle 144,72,60,30,18,$__

Possible Answers:

$\displaystyle 7$

$\displaystyle 6$

$\displaystyle 13$

$\displaystyle 9$

Correct answer:

$\displaystyle 9$

Explanation:

The pattern is to divide by $\displaystyle 2$, then subtract $\displaystyle 12$. The last operation is $18\div2=9$ $\displaystyle 18\div2=9$.

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Example Question #98 : Number Series*

What number should come next in this series?

$\displaystyle -.31,.62,-1.24,2.48,$

Possible Answers:

4.96 $\displaystyle 4.96$

4.02 $\displaystyle 4.02$

-4.02 $\displaystyle -4.02$

-4.96 $\displaystyle -4.96$

Correct answer:

-4.96 $\displaystyle -4.96$

Explanation:

The pattern is to multiply by $\displaystyle -2$ each time. The last operation is $2.48\cdot-2=-4.96$ $\displaystyle 2.48\cdot-2=-4.96$

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Example Question #99 : Number Series*

What number should come next in this series?

$\displaystyle 5,37,69,101,$___

Possible Answers:

134 $\displaystyle 134$

145 $\displaystyle 145$

126 $\displaystyle 126$

133 $\displaystyle 133$

Correct answer:

133 $\displaystyle 133$

Explanation:

The pattern is to add $\displaystyle 32$ each time. The last operation is $\displaystyle 101+32=133$.

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Example Question #100 : Number Series*

What number should come next in this series?

$\displaystyle 14,15.5,17,18.5,$___

Possible Answers:

$\displaystyle 19$

$\displaystyle 20$

20.5 $\displaystyle 20.5$

19.5 $\displaystyle 19.5$

Correct answer:

$\displaystyle 20$

Explanation:

The pattern is to add 1.5 $\displaystyle 1.5$ each time. The last operation is $\displaystyle 18.5+1.5=20$

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All HSPT Quantitative Resources

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HSPT Quantitative : Number Series*

Study concepts, example questions & explanations for HSPT Quantitative

All HSPT Quantitative Resources

Example Questions

Example Question #91 : Number Series*

Example Question #92 : Number Series*

Example Question #93 : Number Series*

Example Question #94 : Number Series*

Example Question #95 : Number Series*

Example Question #96 : Number Series*

Example Question #97 : Number Series*

Example Question #98 : Number Series*

Example Question #99 : Number Series*

Example Question #100 : Number Series*

All HSPT Quantitative Resources

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