A Series huh!

Algebra Level 5

Consider a series :

\(1,7,28,84,210,\dots\)

Let \(T_n\) be its \(n^{th}\) term & \(S_n\) be the sum of its first \(n\) terms.

Find the value of \(\dfrac{S_{30}}{T_{20}}\).

Give your answer correct upto three places of decimal.

Try more from my set Algebra Problems.

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