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If the ratiio of the sum of n terms ofd ...

If the ratiio of the sum of n terms ofd two AP's is (3n+1):(2n+3) then find the ratio of their 11th term

A

(45:64)

B

3:4

C

(64:45)

D

4:3

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The correct Answer is:
C
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PATHFINDER-PROGRESSION AND SERIES -QUESTION BANK
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  5. Given p no. of A.P. each of which consists of an n terms. If their fir...

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  9. The value of 4^(1/3).4^(1/9).4^(1/27)....infty is.

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  10. If the sum of an infinite GP is 20 and sum of their square is 100 then...

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  11. If S=1+a+a^2+....... t o infty , then a=

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  13. If a,b,c in AP and x=sum(n=0)^inftya^n,y=sum(n-0)^inftyb^n,z=sum(n-0)^...

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  14. If a,b,c are in G.P., then the equations ax^2+2bx+c =0 and dx^2+2ex+f ...

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  15. If the product of n positive number is unity, then their sum is

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