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Class 11 Mathematics — Chapter 9: Sequences and Series
66 practice questions · 22 Easy · 22 Medium · 22 Hard
Free NCERT-aligned multiple-choice practice for Class 11 Mathematics, Chapter 9 (Sequences and Series). Practise timed Easy, Medium and Hard quizzes with instant explanations — built for CBSE Board exams, JEE Main and NEET UG. Here are a few sample questions; sign in free to practise all 66.
Sample questions
Q1Easy
nth term of AP a, a+d, a+2d, ... :
A.a + (n−1)d✓ correct
B.a + nd
C.a·dⁿ⁻¹
D.nd
Why
Standard AP formula.
Q2Medium
Sum of n terms of AP:
A.n/2 · [2a + (n−1)d]✓ correct
B.n·a
C.n·d
D.a+nd
Why
Sₙ = n/2 [2a + (n−1)d].
Q3Hard
Sum of infinite GP, |r|<1:
A.a/(1−r)✓ correct
B.a·r
C.a+r
D.1/r
Why
Converges to a/(1−r).
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