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Class 10 Mathematics Arithmetic Progressions (AP)Finding the sum of the first $n$ terms of an APExpert

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In the AP (4,11,18,\ldots), what is the sum from the (25)th term to the (60)th term?

Answer and explanation

Correct answer: (10602)

The required sum is (S_{60}-S_{24}=10602). For a middle range, subtract the sum up to the term just before it.

Related tags

Range Sum Partial Sum Ap Finding The Sum Of The First $N$ Terms Of An Ap Finding The Sum Of The First N Terms Of An Ap Arithmetic Progressions (Ap)Arithmetic Progressions Ap Mathematics

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