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
In (6,13,20,\ldots), which term comes just before (41)?In (160,80,40,20,\ldots), which term comes just before (5)?Which statement is correct for the (n)th term of (11,15,19,\ldots)?Which is the correct rule for the (n)th term of (60,52,44,\ldots)?If (a_1=4), (a_2=9), and each next term is the sum of the previous two terms, what is (a_5)?If (a_n=768) in the sequence (3,12,48,192,\ldots), what is (n)?What is the next term in (2,6,14,30,\ldots) if the rule is double the previous term and add (2)?What will be the next term of (5,12,21,32,\ldots)?What will be the (12)th term of (6,11,16,21,\ldots)?What is the (9)th term of (90,83,76,69,\ldots)?If (a_n=5n-2), what will be the value of (a_9)?If (a_n=2n^2+3), what is (a_6)?What is the missing value in (7,15,23,\Box,39)?Which value fills the blank in (110,\Box,94,86,78)?What is the next term of (4,9,16,25,36,\ldots)?What will be the next term of (150,146,138,126,110,\ldots)?What is the (6)th term of (2,8,32,128,\ldots)?What is the next term of (625,125,25,5,\ldots)?What will be the (7)th term in (1,8,27,64,125,\ldots)?What is the (8)th term of (3,6,10,15,21,\ldots)?