The sum of the 3rd and the 4th terms of a G.P. is 60 and the product of its first three terms is 1000. If the first term of this G.P. is positive, then its 7th term is :
7290
320
640
2430
As we learnt in
General term of a GP -
- wherein
first term
common ratio
Let first term is a andcommon ratio is r then
Also
put in
Option 1)
7290
Incorrect Option
Option 2)
320
correct Option
Option 3)
640
Incorrect Option
Option 4)
2430
Incorrect Option
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