(3) if the first term of a G.P is 5 and
common ratio is -5 then which term
is 3125 ?
o
5
6
O
7<

1 thought on “(3) if the first term of a G.P is 5 and<br />common ratio is -5 then which term<br />is 3125 ?<br />o<br />5<br />6<br />O<br />7<”

1. Answer:

   5 is correct answer for this question

   Step-by-step explanation:

   a=5 and r=-5

   for gp

   an=arn-¹

   a.t.q

   =5×-5^n-1=3125

   -5^n-1=3125/5

   -5^n-1=625

   -5^n/5=625

   -5^n=5⁴×5

   -5^n=5⁵

   so

   bases are same so

   exponent are same

   so n=5 ans

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