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Class 10 Mathematics Arithmetic Progressions (AP)Finding the $n$th term of an APHardLevel 66

If (a_1=8), (d=9), and (a_{3n+2}=197), what is the value of (n)?

Answer and explanation

Correct answer: (7)

(197=8+(3n+1)9), so (189=27n+9) and (n=\frac{20}{3}). Read the index carefully before selecting an integer option.

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ap index variable hard

Frequently asked questions

What is the correct answer to this question?

(7)

Why is this the correct answer?

(197=8+(3n+1)9), so (189=27n+9) and (n=\frac{20}{3}). Read the index carefully before selecting an integer option.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Arithmetic Progressions (AP). Topic: Finding the $n$th term of an AP.

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