Let S n denote the sum of first n terms of an A.P. If S 2n = 3 S n then the ratio S 3n /S…

Mathematics · JEE Main · NTA Exams — Progression and Series

1. 4
2. 6
3. 8
4. 10

Answer

(B) 6

Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.

Related practice questions

• The sum to n terms of the series 3 1^ 2 + 5 1^ 2 +2^ 2 + 7 1^ 2 +2^ 2 +3^ 2 + , is
• If t _ n = 1 4 ( n +2)( n +3) for n = 1, 2, 3, .........., then 1 t_ 1 + 1 t_ 2 + 1 t_ 3 + + 1 t_ 2003 =
• If a, b, c, d are in G.P. then a n + b n , b n + c n , c n + d n are in
• Let the positive numbers a,b,c,d be in A.P. Then, abc, abd, acd, bcd are
• The value of n, for which a^ n +b^ n a^ n-1 +b^ n-1 is A.M. between a and b is
• If a_ 1 , a_ 2 , a_ 3 , , a_ n+1 are in A.P., then 1 a_ 1 a_ 2 + 1 a_ 2 a_ 3 1 a_ n a_ n+1 , is
• Let S_ k = _ r=1 ^ k ^ -1 ( 6^ r 2^ 2 r+1 +3^ 2 r+1 ) Then _ k S_ k is equal to
• If first, second and eighth terms of a G.P. are respectively n –4 , n n , n 52 , then the value of n is

More Progression and Series questions · Browse all practice questions