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Class 9MathematicsSequences and ProgressionsArithmetic ProgressionHardLevel 53
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If (14,x,42) are in arithmetic progression, what is the value of (x)?

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Answer and explanation

Correct answer: (28)

The middle term is (x=\frac{14+42}{2}=28). In exams, the middle term of three AP terms is the average.

Related tags

SequencesProgressionsArithmetic-ProgressionClass-9Hard

Frequently asked questions

What is the correct answer to this question?

(28)

Why is this the correct answer?

The middle term is (x=\frac{14+42}{2}=28). In exams, the middle term of three AP terms is the average.

Which subject and chapter does this question cover?

This is a Class 9 Mathematics question. Chapter: Sequences and Progressions. Topic: Arithmetic Progression.

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  5. 5In an arithmetic sequence, a_1=8 and a_4=20. What is its explicit rule?
  6. 6What is the common difference in the sequence (2,5,8,11,\ldots)?
  7. 7What will be the next term of the sequence (7,12,17,22,\ldots)?
  8. 8If an arithmetic progression has first term (4) and common difference (6), what is the second term?
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