Let a,b and c be the 7th,11th and 13th terms respectively of a non-constant A.P.If these are also the three consecutive terms of a G.P., then a/c is equal to :
2
7/13
1/2
4
General term of an A.P. -
- wherein
First term
number of term
common difference
Selection of terms in G.P. -
If we have to take three terms in GP, we take them as
- wherein
Extension : If we have to take (2K+1) term in GP, we take them as
From the concept
and and are in G.P
2
Option 2)
7/13
Option 3)
1/2
Option 4)
4
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