Q. 44.1( 19 Votes )

Find the 25th term of the AP

Answer :

Here, First term = a = 5

Common difference = d = 9/2 - 5 = - (1/2)


To find = 25th term, n = 25


Using the formula for finding nth term of an A.P.,


an = a + (n - 1) × d


an = 5 + (25 - 1) × (-1/2)


an = 5 + 24 × (-1/2) = 5 - 12 = - 7


25th term of the given AP is - 7.


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