The product of three consecutive terms of a G.P. is 512. If 4 is added to each of the first and the second of these terms, the three terms now form an A.P. Then the sum of the original three terms of the given G.P. is :
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
General term of an A.P. -
- wherein
First term
number of term
common difference
be three terms.
Putting
Numbers are 4,8,16 or 16, 8,4
Sum of numbers = 4+ 8 + 16 = 28
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