Mathematics
nth term
अनुक्रम का nवाँ पद
In this Class 9 Mathematics topic from Sequences and Progressions, students learn how to find the nth term of a sequence by connecting a term’s position with its value. The topic focuses especially on arithmetic progressions, where each term changes by a constant common difference, using the formula aₙ = a + (n − 1)d. Students practise identifying patterns, finding missing or distant terms, checking whether a number belongs to a sequence, and applying the method to clear numerical and real-life problems.
Practice questions
What is the 30th term of the sequence 12, 19, 26, 33, …?Which general term is correct for the sequence 5/2, 7, 27/2, 22, ...?What is the general term of the sequence 3, 21, 119, 617, ...?What is the general term of the sequence 7/3, 6, 11, 52/3, ...?What is the nth term of the sequence 64, 125, 216, 343, ...?What is the general term of the sequence (9, 49, 121, 225, ...)?What is the 40th term of the sequence (15, 24, 33, 42, ...)?If aₙ = 2n + 5, which first three terms of an arithmetic progression does it give?What is the eighth term in the arithmetic progression (13,18,23,28, …)?What is the tenth term of the arithmetic progression (7,14,21,28, …)?What is the 10th term of the arithmetic progression (3,8,13,18, …)?What is the nth term of the arithmetic progression (12,17,22,27, …)?What is the 11th term of the arithmetic progression (100, 90, 80, 70, ...)?In the arithmetic progression (13,19,25,31,...), which term is (61)?What is the first negative term of the arithmetic progression (11, 8, 5, 2, ...)?What is the fifth term in the arithmetic progression (9, 13, 17, 21, ...)?In the arithmetic progression (2, 8, 14, 20, ...), which term is 32?What is the eighth term in the arithmetic progression (21, 27, 33, 39, ...)?What will be the (9)th term of the arithmetic progression (28,24,20,16,\ldots)?If the 5th term of an arithmetic progression is 27 and the common difference is 3, what is the first term?