Question

The first term and the mth term of a geometric progression are `a and n` respectively and its nth term is `m`. Then its `(m+1-n)`th term is _____.
A. `(ma)/(n)`
B. `(na)/(m)`
C. `mna`
D. `(mn)/(a)`

Answer 1

Correct Answer - B
(i) Use the formula to find `n`th term of a GP.
(ii) `ar^(m-1) = n,ar^(n-1) =m`.
(iii) `(m+1 -n)`th term =`ar^(m-n)`