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

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

A

A.P.

B

G.P

C

H.P.

D

None of these

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A
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VMC MODULES ENGLISH-SEQUENCE AND SERIES -LEVEL-1
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  10. if x >0 , and log2 x + log2 (x^(1/2)) + log2 (x^(1/4))+ ------------ =...

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

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

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

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  17. If 0.bar(27), x and 0.bar(72) are in H.P. , then x must be :

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  18. The following consecutive terms (1)/(1+sqrt(x)),(1)/(1-x),(1)/(1-sqrt(...

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  19. If the (m+1)t h ,(n+1)t h ,a n d(r+1)t h terms of an A.P., are in G.P....

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  20. Let a1,a2 ,…. , a10 be in A.P. and h1,h2 …. h10 be in H.P. If a1=h1...

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