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Class 11 Maths Practice Test - Geometric Progression
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Related Test: Class 11 Maths Practice Test - Arithmetic Progression

Class 11 Maths Practice Test - Geometric Progression
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15 Questions

1. The sum of first three terms of a G.P. is 21/2 and their product is 27. Find the common ratio.
2. If a=3 and r=2 then find the sum up 5th term.
3. If first term of a G.P. is 20 and common ratio is 4. Find the 5th term.
4. Find the sum of series 1+1/2 + 1/4 + ………. up to 6 terms.
5. Which of the following is the geometric mean of 3 and 12.
6. What is nth term of a G.P.?
7. In G.P. 4, 8, 16, 32, ………… find the sum up to 5th term.
8. If r=1 in a G.P. then what is the sum to n terms?
9. Which term of G.P. 25, 125, 625, …………. is 390625?
10. The sum of first three terms of a G.P. is 21/2 and their product is 27. Which of the following is not a term of the G.P. if the numbers are positive?
11. A sequence is called ___________________ if an+1 = an * r.
12. If three positive numbers are inserted between 4 and 512 such that the resulting sequence is a G.P., which of the following is not among the numbers inserted?
13. How many terms of G.P. 2,4,8,16, …………… are required to give sum 254?
14. If a sequence is in the form 2*5n then which of the following may be the sequence?
15. In a G.P., 5th term is 27 and 8th term is 729. Find its 11th term.

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