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

What will be the (39)th term of the AP (-19,\frac{-17}{2},2,\ldots)?

Answer and explanation

Correct answer: (384)

Here (d=\frac{21}{2}). (a_{39}=-19+38\cdot\frac{21}{2}=380), so checking options is necessary.

Tags

ap expert fraction negative

Frequently asked questions

What is the correct answer to this question?

(384)

Why is this the correct answer?

Here (d=\frac{21}{2}). (a_{39}=-19+38\cdot\frac{21}{2}=380), so checking options is necessary.

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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