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
In the arithmetic progression (18, 25, 32, 39, ...), which term is 74?What is the general term of the arithmetic progression (9, 17, 25, 33, ...)?In the arithmetic progression (90, 82, 74, 66, ...), which term is 18?In the arithmetic progression (2, 9, 16, 23, ...), what is the value of a₈ + a₃?What is the twelfth term of the arithmetic progression (11, 18, 25, 32, ...)?The nth term of an arithmetic progression is aₙ = 7n − 2. Which term is equal to 96?In the arithmetic progression (50, 43, 36, 29, …), which term is equal to 1?What is the nth term of the arithmetic progression 5, 14, 23, 32, ...?If a_n = 5n - 12, which is the first positive term?What is the 20th term of the arithmetic progression 13, 18, 23, 28, ...?What is the fourteenth term of the arithmetic progression (13, 19, 25, 31, …)?What is the general term of the arithmetic progression (9, 15, 21, 27, …)?In the arithmetic progression 64, 57, 50, 43, ..., which term is 8?What is the nth term of the arithmetic progression 8, 17, 26, 35, ...?What is the 25th term of the arithmetic progression 17, 22, 27, 32, ...?What is the general term of the arithmetic progression (12, 20, 28, 36, ...)?If the fifth term of the arithmetic progression (x, x + 9, x + 18, ...) is 58, what is x?In the arithmetic progression (72, 64, 56, 48, ...), which term is 0?What is the nth term of the arithmetic progression (11, 20, 29, 38, ...)?If a_n = 7n - 23, which is the first positive term?