Mathematics
Sequences
अनुक्रम
In this Class 9 Mathematics topic from Sequences and Progressions, students learn how numbers or objects are arranged in a definite order and how to identify the rule connecting successive terms. They practise finding missing terms, writing a sequence from a given pattern, and expressing its general term when the relationship is clear. The topic develops pattern recognition, logical reasoning, and accuracy, while preparing students to understand progressions and solve sequence-based problems in later mathematics.
Practice questions
Which sequence is formed by (a_n=6n^2)?Which sequence shows the first four terms of (a_n=2^n+n)?What is the difference between the (10)th terms of (5,11,17,23,\ldots) and (2,8,14,20,\ldots)?How are the (8)th term of (18,25,32,\ldots) and the (8)th term of (9,16,23,\ldots) related?What is the sum of the first (8) terms of (7,14,21,\ldots)?What is the sum of the first (6) terms of (96,88,80,\ldots)?Which term is (76) in (6,13,20,27,\ldots)?What is the value of (a_7+a_8) in (9,14,19,24,\ldots)?What is (a_8-a_3) in (20,29,38,47,\ldots)?If \(a,b,c\) are three consecutive terms of an arithmetic progression, which of the following relations is always true?If (a_1=14) and (8) is added to each next term, what is (a_{11})?Which of the following sequences is an arithmetic progression, even though all its terms are not positive?What is the next term in (3,11,35,107,\ldots) if the rule is triple the previous term and add (2)?What is the next term in (128,63,30.5,14.25,\ldots) if the rule is divide the previous term by (2) and subtract (1)?What is the next term in (8,14,26,44,68,\ldots)?What will be the next term in (300,288,264,228,180,\ldots)?What is the next term of (4,8,24,96,\ldots)?What is the ratio of the (3)rd terms of (6,30,150,\ldots) and (8,40,200,\ldots)?How many first terms of (10,18,26,34,\ldots) have sum (130)?In (12,21,30,\ldots), which term comes just before (75)?