If for an A.P. T 3 = 18 and T 7 = 30 then S 17 is equal to
Mathematics · JEE Main · NTA Exams — Progression and Series
If for an A.P. T3 = 18 and T7 = 30 then S17 is equal to
- 612
- 622
- 306
- none of these
Answer
(A) 612
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- If sum of first n terms of an A.P. (having positive terms) is given by S_ n = (1+2 T_ n ) (1-T_ n ) where T_…
- Find the sum of first 24 terms of an AP a 1 , a 2 , a 3 ....., if it is known that a 1 + a 5 + a 10 + a 15 +…
- If the sum of an infinitely decreasing GP is 3, and the sum of the squares of its terms is 9/2, the sum of…
- If a, b, c, d are in GP, then the value of (a-c)^ 2 +(b-c)^ 2 +(b-d)^ 2 -(a-d)^ 2 is
- If a _ 1 , a _ 2 , a _ 3 ( a _ 1 >0 ) are three successive terms of a G.P. with common ratio r, the value of…
- If a 1 , a 2 , a 3 , ................, a n are distinct odd natural numbers not divisible by any prime…
- Let f (x) be a polynomial of second degree. If f(1)=f(-1) and a, b, c are in AP, then f^ (a) f^ (b) f^ (c)…
- One side of an equilateral triangle is 24 cm. The mid-points of its sides are joined to form another…
More Progression and Series questions · Browse all practice questions