Question

the15 term of the series 248,81,27​

Answer 1

Explanation:

Given series is 243,81,27,.....

Common ratio =

243

81

=

81

27

=

3

1

Hence, the above series is in G.P.

t

15

=243(

3

1

)

15−1

=

3

14

3

5

=

3

9

1

=

3

9

(3)

3

=(

3

1

)

10

(

3

1

)