Algebra, NAP_700032

Question

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Worked Solution

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Variant 0

DifficultyLevel

515

Question

If the average of 2, 9, 15 and p\large p is 16, then 2 + 9 + 15 + p\large p = ?

Worked Solution

The average of 2, 9, 15 and p\large p is 16 then
2+9+15+p4\dfrac{2 + 9 + 15 + \large p}{4} = 16
2 + 9 + 15 + p\large p = 16 ×\times 4

∴\therefore 2 + 9 + 15 + p\large p = 64

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
If the average of 2, 9, 15 and $\large p$ is 16, then 2 + 9 + 15 + $\large p$ = ?
workedSolution
The average of 2, 9, 15 and $\large p$ is 16 then
>>||| |-|-| |$\dfrac{2 + 9 + 15 + \large p}{4}$|= 16 | |2 + 9 + 15 + $\large p$|= 16 $\times$ 4|

>>$\therefore$ 2 + 9 + 15 + $\large p$ = {{{correctAnswer}}}
correctAnswer
64

Answers

Is Correct?Answer
x

16

x

32

x

48

✓

64

Variant 1

DifficultyLevel

517

Question

If the average of 1, 7, 9 and q\large q is 8, then 1 + 7 + 9 + q\large q = ?

Worked Solution

The average of 1, 7, 9 and q\large q is 8 then
1+7+9+q4\dfrac{1 + 7 + 9 + \large q}{4} = 8
1 + 7 + 9 + q\large q = 8 ×\times 4

∴\therefore 1 + 7 + 9 + q\large q = 32

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
If the average of 1, 7, 9 and $\large q$ is 8, then 1 + 7 + 9 + $\large q$ = ?
workedSolution
The average of 1, 7, 9 and $\large q$ is 8 then
>>||| |-|-| |$\dfrac{1 + 7 + 9 + \large q}{4}$|= 8 | |1 + 7 + 9 + $\large q$|= 8 $\times$ 4|

>>$\therefore$ 1 + 7 + 9 + $\large q$ = {{{correctAnswer}}}
correctAnswer
32

Answers

Is Correct?Answer
x

8

x

16

✓

32

x

56

Variant 2

DifficultyLevel

519

Question

If the average of 5, 12, 19 and x\large x is 16, then 5 + 12 + 19 + x\large x = ?

Worked Solution

The average of 2, 9, 15 and x\large x is 16 then
5+12+19+x4\dfrac{5 + 12 + 19 + \large x}{4} = 16
5 + 12 + 19 + x\large x = 16 ×\times 4

∴\therefore 5 + 12 + 19 + x\large x = 64

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
If the average of 5, 12, 19 and $\large x$ is 16, then 5 + 12 + 19 + $\large x$ = ?
workedSolution
The average of 2, 9, 15 and $\large x$ is 16 then
>>||| |-|-| |$\dfrac{5 + 12 + 19 + \large x}{4}$|= 16 | |5 + 12 + 19 + $\large x$|= 16 $\times$ 4|

>>$\therefore$ 5 + 12 + 19 + $\large x$ = {{{correctAnswer}}}
correctAnswer
64

Answers

Is Correct?Answer
x

16

x

42

✓

64

x

84

Tags

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