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  • Class 11 Maths Study Material

An Educational platform for Preparation and Practice Class 11. Kidsfront provide unique pattern of learning Maths with free online comprehensive study material in the form of QUESTION & ANSWER for each Chapter of Maths for Class 11. This study material help Class 11, Maths students in learning every aspect of Sequence and Series. Students can understand Sequence and Series concept easily and consolidate their learning by doing Online Practice Tests on Maths,Sequence and Series chapter repeatedly till they excel in Class 11, Sequence and Series. Free ONLINE PRACTICE TESTS on Class 11, Sequence and Series comprise of Hundreds of Questions on Sequence and Series, prepared by the highly professionals team. Every repeat test of Sequence and Series will have new set of questions and help students to prepare themselves for exams by doing unlimited Online Test exercise on Sequence and Series. Attempt ONLINE TEST on Class 11,Maths,Sequence and Series in Academics section after completing this Sequence and Series Question Answer Exercise.

Unique pattern

  • Topic wise:Sequence and Series preparation in the form of QUESTION & ANSWER.
  • Evaluate preparation by doing ONLINE TEST of Class 11, Maths,Sequence and Series.
  • Review performance in PRACTICE TEST and do further learning on weak areas.
  • Attempt repeat ONLINE TESTS of Maths Sequence and Series till you excel.
  • Evaluate your progress by doing ONLINE MOCK TEST of Class 11, Maths, All TOPICS.

Sequence and Series
Next two terms of sequence 1,3,7,15,31,… are

a) 225325
b) 25325
c) 241545
d) None of this

Correct Answer Is : None of this
Solution Is :
General term of a G.P. is

a) Arn-1
b) Nra-1
c) Anr-1
d) Arn-2

Correct Answer Is : Arn-1
Solution Is :
The numbers whose arithmetic mean is 68 and geometric mean is 32 are:

a) 8 & 128
b) 6 & 128
c) 8 & 124
d) 5 & 125

Correct Answer Is : 8 & 128
Solution Is :
Sum of squares of the first n natural numbers is

a) [n(n+1)(2n+1)]/6
b) [n(n+1)(2n+1)]/4
c) [n(2n+1)(2n+1)]/6
d) [n(n^2+1)(2n+1)]/6

Correct Answer Is : [n(n+1)(2n+1)]/6
Solution Is :
What is the sum of all two digit odd positive integers?

a) 2475
b) 3256
c) 2015
d) 2021

Correct Answer Is : 2475
Solution Is :
The arithmetic mean A of any two numbers ‘a’ and ‘b’ is given by

a) (a+b)
b) (a+b)/3
c) (a+b)/2
d) None of this

Correct Answer Is : (a+b)/2
Solution Is :
If A, G, H are arithmetic, geometric and harmonic means between a and b respectively, then A,G,H are in

a) GP
b) HP
c) AP
d) SP

Correct Answer Is : GP
Solution Is :
If the number of terms of a G.P. is 3, with the common ratio r, then the selection of terms can be

a) A/r,a,ar
b) R/a,a,ar
c) A/r,r,ar
d) None of this

Correct Answer Is : A/r,a,ar
Solution Is :
If the number of terms are six with common difference `2d`, then the terms can be taken as

a) A-4d,a-3d,a-d,a+d,a+4d,a+5d
b) A-5d,a-3d,a-d,a+d,a+3d,a+5d
c) A-5d,a-3d,d-a,a+d,a+3d,a+5d
d) A-4d,a-2d,a-d,a+d,a+2d,a+4d

Correct Answer Is : A-5d,a-3d,a-d,a+d,a+3d,a+5d
Solution Is :
21 + 22 +23 +….+2n=

a) 2(2n- 2)
b) 2(2n- 4)
c) 2(2n- 7)
d) 2(2n- 1)

Correct Answer Is : 2(2n- 1)
Solution Is :
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