Q. 204.5( 26 Votes )

Find the 8th term from the end of the AP 7, 10, 13, ..., 184.

Answer :

Here, First term = a = 7

Common difference = d = 10 - 7 = 3


Last term = l = 184


To find: 8th term from end.


So, nth term from end is given by:


an = l - (n - 1)d


8th term from end is:


a8 = 184 - (8 - 1) × 3


= 184 - 21


= 163


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