1.

Sum of the 13th term of an ap is 416 find its 7th term?

Answer»

Let TAKE the 1st NUMBER as x
let take 2nd number as x-416
according to the question,
equation: x+x-416=416
2x=416+416
x=832/2
= 416

7th term = x-416
= 416-416
=0
13TH term =416
so the sum is 416

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