Question

when term of the series 79,77,75... is 47.

Answer 1

HEY MATE HERE IS YOUR ANSWER---
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here a =79
d = -2
an = a+(n-1)d
47 = 79 - 2n +2
47 - 81 = -2n
-34 = -2n
n =34/2
n =17

Hence 17th term of AP is 47

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