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Find the 20th and nth terms of the G.P. ...

Find the 20th and nth terms of the G.P. `5/2,5/4,5/8,`.....

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PSEB-SEQUENCES AND SERIES-EXERCISE
  1. A man starts repaying a loan as first instalment of Rs. 100. If he inc...

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  2. The difference between any two consecutive interior angles of a polygo...

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  3. Find the 20th and nth terms of the G.P. 5/2,5/4,5/8,.....

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  4. Find the 12th term of a G.P. whose 8th term is 192 and the common rati...

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  5. The 5th, 8th and 11th terms of a G.P. are p, q and x, respectively. Sh...

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  6. The 4th term of a G.P. is square of its second term, and the first ter...

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  7. Which term of the following sequence:- 2,2sqrt2,4,.....is 128?

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  8. Which term of the following sequence:- sqrt3,3,3sqrt3,....is 729?

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  9. Which term of the following sequence:- 1/3,1/9,1/27,.....is 1/19683 ?

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  10. For what values of x, the numbers -2/7,x, -7/2 are in G.P.?

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  11. Find the sum to indicated number of terms of the geometric progression...

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  12. Find the sum to indicated number of terms of the geometric progression...

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  13. Find the sum to indicated number of terms of the geometric progression...

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  14. Find the sum to indicated number of terms of the geometric progression...

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  15. Evaluate sum(k=1)^11(2+ 3^k).

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  16. The sum of first three terms of a G.P. is 39/10 and their product is 1...

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  17. How many terms of G.P. 3, 3^2, 3^3, ... are needed to give the sum 120...

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  18. The sum of first three terms of a G.P. is 16 and the sum of the next t...

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  19. Given a G.P. with a= 729 and 7th term 64, determine S7.

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  20. Find a G.P. for which sum of the first two terms is -4 and the fifth t...

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