Question

Find the middle term of the AP 213,205,197........37.​ Pls Answer fast for the brainliest.....

Answer 1

Answer: here a = 213, a'nth=37 d= a2-a1 = 205-213 = -8

By using formula: a'nth = a+(n-1)d

=>37 = 213-8(n-1)

=>37-213 = 8(n-1)

=>176 = 8(n-1)

=>176/8 = n-1

=>22 = n-1

=>n = 23

as A.P has odd no. of terms

So mid term of the given A.P = (23/2 + 1)th term

= 13.5th here we will consider only whole part of answer which is 13th term

again by applying formula a'nth = a+(n-1)d

a'13th = 213-8(13-1)

= 213-(8X12)

= 213-96

=117

HOPE IT HELPS YOU!!!

THANK YOU!!!

HAVE A NICE DAY AHEAD!

Answer 2

205-197=8
205-8=197
So, 213-37=176
213-173=37
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