Q6 of 24 Page 115

In an Ap the sum of first n terms is . Find the 25th term.

Let the first term be ‘a’ and common difference be ‘d’.


Given, Sum of n terms:



25th term = Sum of 25 terms – Sum of 24 terms


⇒ a25 = S25 – S24





⇒ a25 = 1100 – 1020 = 80


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