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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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For the AP (12,23,34,\ldots), after how many first terms will the sum exceed (10000) for the first time?

Answer and explanation

Correct answer: (43)

(S_{42}=9975) and (S_{43}=10449), so the sum first exceeds (10000) at (43) terms. Always check the previous sum.

Related tags

Least N Exceeds Value 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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