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Three given numbers whose sum is 24 are ...

Three given numbers whose sum is 24 are in an A.P. If the first is decreased by 1 the second is decreased by 2 and the third is left unchanged the resulting numbers are in a G.P. Then the given numbers are

A

3,13,8

B

4,8,12

C

13,3,8

D

none of these

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The correct Answer is:
B
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MARVEL PUBLICATION-SEQUENCES AND SERIES -MULTIPLE CHOICE QUESTIONS
  1. If the positive numbers 3,x,5,y are in a G.P., then : (x,y)=

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  2. Four number in G.P. such that the product of their extremes is 108 and...

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  3. Three given numbers whose sum is 24 are in an A.P. If the first is dec...

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

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

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

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

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

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

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

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

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

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

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

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

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  18. 8^(2)+9^(2)+10^(2)+ cdots +22^(2)=

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  19. 60^(2)-59^(2)+58^(2)-57^(2)+ cdots +2^(2)-1^(2) =

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  20. 40^(3)-38^(3)+36^(3)-34^(3)+ cdots +4^(3)-2^(3)=

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