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If the 5^(th) and 8^(th) terms of a G.P....

If the `5^(th)` and `8^(th)` terms of a G.P. are 32 and 256 respectively . Then its `4^(th)` term is

A

8

B

12

C

16

D

20

Text Solution

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The correct Answer is:
C
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MARVEL PUBLICATION-SEQUENCES AND SERIES -MULTIPLE CHOICE QUESTIONS
  1. Three given numbers whose sum is 24 are in an A.P. If the first is dec...

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  2. Three numbers whose sum is 18 are in AP if 2,4, 11 are added to them r...

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  3. If the 5^(th) and 8^(th) terms of a G.P. are 32 and 256 respectively ....

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  4. If 5^(th) , 8^(th) and 11^(th) terms of a G.P. are p,q and s respectiv...

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  5. If x,y,z are in G.P. then log x , log y, logz, are in

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  6. If the third term of G.P.is 4, then find the product of first five ter...

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  7. If x, 2x+ 2, 3x + 3 are in G.P. , then the fourth term is

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  8. A man borrows Rs. 8190 without interset and repays the loan in 12 mon...

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  9. If a,b,c are unequal numbers in A.P. such that a,b-c,c-a are in G.P. t...

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  10. If a, b, c are in A.P. and x, y, z are in G.P., then prove that : x^...

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  11. If a,b,c are simultaneously in an A.P. and a G.P. , then : a^(b).b^(c)...

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  12. if S is the sum , P the product and R the sum of reciprocals of n term...

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  13. The A.M. of a and c is b. If b is also the G.M. of a and c+1 then : ...

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  14. If the A.M. and G.M. of the roots of a quadratic equation in x are P a...

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  15. If the A.M. of the roots of a quadratic equation is (8)/(5) and the A....

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  16. 8^(2)+9^(2)+10^(2)+ cdots +22^(2)=

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  17. 60^(2)-59^(2)+58^(2)-57^(2)+ cdots +2^(2)-1^(2) =

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  18. 40^(3)-38^(3)+36^(3)-34^(3)+ cdots +4^(3)-2^(3)=

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  19. If sum(r=1)^(n) r=210, then : sum(r=1)^(n) r^(2)=

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  20. sum(r=1)^(20) r (2r+1)=

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