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The Index N of Progression is the value of n for the nth term or the position of the nth term in a Progression. Check FAQs
n=(2Sna+Tn)
n - Index N of Progression?Sn - Sum of First N Terms of Progression?a - First Term of Progression?Tn - Nth Term of Progression?

Number of Terms of Arithmetic Progression given Sum of First N Terms Example

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Here is how the Number of Terms of Arithmetic Progression given Sum of First N Terms equation looks like with Values.

Here is how the Number of Terms of Arithmetic Progression given Sum of First N Terms equation looks like with Units.

Here is how the Number of Terms of Arithmetic Progression given Sum of First N Terms equation looks like.

15.873Edit=(2500Edit3Edit+60Edit)
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Number of Terms of Arithmetic Progression given Sum of First N Terms Solution

Follow our step by step solution on how to calculate Number of Terms of Arithmetic Progression given Sum of First N Terms?

FIRST Step Consider the formula
n=(2Sna+Tn)
Next Step Substitute values of Variables
n=(25003+60)
Next Step Prepare to Evaluate
n=(25003+60)
Next Step Evaluate
n=15.8730158730159
LAST Step Rounding Answer
n=15.873

Number of Terms of Arithmetic Progression given Sum of First N Terms Formula Elements

Variables
Index N of Progression
The Index N of Progression is the value of n for the nth term or the position of the nth term in a Progression.
Symbol: n
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Sum of First N Terms of Progression
The Sum of First N Terms of Progression is the summation of the terms starting from the first to the nth term of given Progression.
Symbol: Sn
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.
First Term of Progression
The First Term of Progression is the term at which the given Progression starts.
Symbol: a
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.
Nth Term of Progression
The Nth Term of Progression is the term corresponding to the index or position n from the beginning in the given Progression.
Symbol: Tn
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.

Other Formulas to find Index N of Progression

​Go Number of Terms of Arithmetic Progression
n=(Tn-ad)+1

Other formulas in Number of Terms in Arithmetic Progression category

​Go Number of Total Terms of Arithmetic Progression given Sum of Total Terms
nTotal=(2STotala+l)
​Go Number of Total Terms of Arithmetic Progression
nTotal=(l-ad)+1

How to Evaluate Number of Terms of Arithmetic Progression given Sum of First N Terms?

Number of Terms of Arithmetic Progression given Sum of First N Terms evaluator uses Index N of Progression = ((2*Sum of First N Terms of Progression)/(First Term of Progression+Nth Term of Progression)) to evaluate the Index N of Progression, The Number of Terms of Arithmetic Progression given Sum of First N Terms formula is defined as the value of n for the nth term or the position of the nth term in an Arithmetic Progression, and calculated using the sum of first n terms of given Arithmetic Progression. Index N of Progression is denoted by n symbol.

How to evaluate Number of Terms of Arithmetic Progression given Sum of First N Terms using this online evaluator? To use this online evaluator for Number of Terms of Arithmetic Progression given Sum of First N Terms, enter Sum of First N Terms of Progression (Sn), First Term of Progression (a) & Nth Term of Progression (Tn) and hit the calculate button.

FAQs on Number of Terms of Arithmetic Progression given Sum of First N Terms

What is the formula to find Number of Terms of Arithmetic Progression given Sum of First N Terms?
The formula of Number of Terms of Arithmetic Progression given Sum of First N Terms is expressed as Index N of Progression = ((2*Sum of First N Terms of Progression)/(First Term of Progression+Nth Term of Progression)). Here is an example- 50.79365 = ((2*500)/(3+60)).
How to calculate Number of Terms of Arithmetic Progression given Sum of First N Terms?
With Sum of First N Terms of Progression (Sn), First Term of Progression (a) & Nth Term of Progression (Tn) we can find Number of Terms of Arithmetic Progression given Sum of First N Terms using the formula - Index N of Progression = ((2*Sum of First N Terms of Progression)/(First Term of Progression+Nth Term of Progression)).
What are the other ways to Calculate Index N of Progression?
Here are the different ways to Calculate Index N of Progression-
  • Index N of Progression=((Nth Term of Progression-First Term of Progression)/Common Difference of Progression)+1OpenImg
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