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In a set of four numbers, the first three are in G.P. and the last three are in A.P. with difference 6. If the first number is the same as the fourth, find the four numbers.

A

2, 4, 8, 12

B

8, – 4, 2, 8

C

3, 6, 12, 18

D

6, 12, 18, 24

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The correct Answer is:
B
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VMC MODULES ENGLISH-SEQUENCE AND SERIES -LEVEL-1
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  2. Sum to n-terms of the series (1/2)^2 + (3/4)^2 + (7/8)^2 + (15/16)^2 +...

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  3. In a set of four numbers, the first three are in G.P. and the last thr...

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  4. Find a three digit numberwhose consecutive digits form a GP. If we sub...

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  5. If sin theta,sqrt(2) (sintheta + 1),6 sin theta +6 are in GP, than the...

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  6. If sumn ,(sqrt(10))/3sumn^2,sumn^3 are in GP, then the value of n is

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  7. If n!,3xxn! and (n+1)! are in GP, then n!,5xxn! And (n+1)! are in

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  8. the lengths of three unequal egdes of a rectangular solids block a...

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  9. If A=1+r^a+r^(2a)+...oo=a and B=1+r^b+r^(2b)+...oo=b then a/b is equal...

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  10. The sum of an infinite geometric series is 2 and the sum of the geomet...

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  11. Three numbers are in G.P. whose sum is 70. If the extremes be each ...

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  12. Find two numbers whose arithmetic mean is 34 and the geometric mean is...

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  13. if (a,b) , (c,d) , (e,f)are the vertices of a triangle such that a, c,...

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  14. if x >0 , and log2 x + log2 (x^(1/2)) + log2 (x^(1/4))+ ------------ =...

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  15. If the p^(t h)a n d q^(t h) terms of a G.P. are q a n d p respectively...

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  16. The number of terms common between the series 1+2+4+8+ .......to 100 t...

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  17. If a,b,c are in H.P., then the value of ((1)/(b)+(1)/(c)-(1)/(a))((1...

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  18. If 1/(b-a)+1/(b-c)=1/a+1/c , then (A). a ,b ,a n dc are in H.P. (B). a...

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  19. a, b, c are the first three terms of geometric series. If the H.M. of ...

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  20. Let there be a GP whose first term is a and the common ratio is r. If ...

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