Algebra, NAP_70771

Question

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Worked Solution

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Variant 0

DifficultyLevel

506

Question

Ferris is writing down a number pattern.

23, 22, 20, 17, ?


What number should Ferris write down next?

Worked Solution

The amount being subtracted each time is increasing by 1.
1st number = 23
2nd number = 23 −- 1 = 22
3rd number = 22 −- 2 = 20
4th number = 20 −- 3 = 17
? = 17 −- 4 = 13

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
Ferris is writing down a number pattern. >23, 22, 20, 17, ?
What number should Ferris write down next?
workedSolution
The amount being subtracted each time is increasing by 1.
|||| |-:|-|-| |1st number|= 23|| |2nd number|= 23 $-$ **1**| = 22| |3rd number|= 22 $-$ **2**| = 20| |4th number|= 20 $-$ **3**| = 17 | |?| = 17 $-$ **4**| = {{{correctAnswer}}}|
correctAnswer
13

Answers

Is Correct?Answer
x

10

x

12

✓

13

x

14

Variant 1

DifficultyLevel

508

Question

Prince is writing down a number pattern.

35, 30, 24, 17, ?


What number should Prince write down next?

Worked Solution

The amount being subtracted each time is increasing by 1.
1st number = 35
2nd number = 35 −- 5 = 30
3rd number = 30 −- 6 = 24
4th number = 24 −- 7 = 17
? = 17 −- 8 = 9

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
Prince is writing down a number pattern. >35, 30, 24, 17, ?
What number should Prince write down next?
workedSolution
The amount being subtracted each time is increasing by 1.
|||| |-:|-|-| |1st number|= 35|| |2nd number|= 35 $-$ **5**| = 30| |3rd number|= 30 $-$ **6**| = 24| |4th number|= 24 $-$ **7**| = 17 | |?| = 17 $-$ **8**| = {{{correctAnswer}}}|
correctAnswer
9

Answers

Is Correct?Answer
x

15

x

13

x

11

✓

9

Variant 2

DifficultyLevel

510

Question

Hugo is writing down a number pattern.

40, 35, 31, 28, ?


What number should Hugo write down next?

Worked Solution

The amount being subtracted each time is decreasing by 1.
1st number = 40
2nd number = 40 −- 5 = 35
3rd number = 35 −- 4 = 31
4th number = 31 −- 3 = 28
? = 28 −- 2 = 26

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
Hugo is writing down a number pattern. >40, 35, 31, 28, ?
What number should Hugo write down next?
workedSolution
The amount being subtracted each time is decreasing by 1.
|||| |-:|-|-| |1st number|= 40|| |2nd number|= 40 $-$ **5**| = 35| |3rd number|= 35 $-$ **4**| = 31| |4th number|= 31 $-$ **3**| = 28 | |?| = 28 $-$ **2**| = {{{correctAnswer}}}|
correctAnswer
26

Answers

Is Correct?Answer
✓

26

x

25

x

24

x

23

Variant 3

DifficultyLevel

512

Question

Pat is writing down a number pattern.

60, 50, 41, 33, ?


What number should Pat write down next?

Worked Solution

The amount being subtracted each time is decreasing by 1.
1st number = 60
2nd number = 60 −- 10 = 50
3rd number = 50 −- 9 = 41
4th number = 41 −- 8 = 33
? = 33 −- 7 = 26

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
Pat is writing down a number pattern. >60, 50, 41, 33, ?
What number should Pat write down next?
workedSolution
The amount being subtracted each time is decreasing by 1.
|||| |-:|-|-| |1st number|= 60|| |2nd number|= 60 $-$ **10**| = 50| |3rd number|= 50 $-$ **9**| = 41| |4th number|= 41 $-$ **8**| = 33 | |?| = 33 $-$ **7**| = {{{correctAnswer}}}|
correctAnswer
26

Answers

Is Correct?Answer
x

28

✓

26

x

23

x

21

Variant 4

DifficultyLevel

514

Question

Bjorn is writing down a number pattern.

102, 112, 132, 162, ?


What number should Bjorn write down next?

Worked Solution

The amount being added each time is increasing by 10.
1st number = 102
2nd number = 102 + 10 = 112
3rd number = 112 + 20 = 132
4th number = 132 + 30 = 162
? = 162 + 40 = 202

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
Bjorn is writing down a number pattern. >102, 112, 132, 162, ?
What number should Bjorn write down next?
workedSolution
The amount being added each time is increasing by 10.
>|||| |-:|-|-| |1st number|= 102|| |2nd number|= 102 + **10**| = 112| |3rd number|= 112 + **20**| = 132| |4th number|= 132 + **30**| = 162 | |?| = 162 + **40**| = {{{correctAnswer}}}|
correctAnswer
202

Answers

Is Correct?Answer
✓

202

x

192

x

182

x

172

Variant 5

DifficultyLevel

516

Question

Isobel is writing down a number pattern.

43, 48, 58, 73, ?


What number should Isobel write down next?

Worked Solution

The amount being added each time is increasing by 5.
1st number = 43
2nd number = 43 + 5 = 48
3rd number = 48 + 10 = 58
4th number = 58 + 15 = 73
? = 73 + 20 = 93

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
Isobel is writing down a number pattern. >43, 48, 58, 73, ?
What number should Isobel write down next?
workedSolution
The amount being added each time is increasing by 5.
>|||| |-:|-|-| |1st number|= 43|| |2nd number|= 43 + **5**| = 48| |3rd number|= 48 + **10**| = 58| |4th number|= 58 + **15**| = 73 | |?| = 73 + **20**| = {{{correctAnswer}}}|
correctAnswer
93

Answers

Is Correct?Answer
x

78

x

83

✓

93

x

98

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