Mathematics
Arithmetic Progression
समांतर श्रेणी
Arithmetic Progression for Class 9 Mathematics introduces a sequence in which consecutive terms change by a constant common difference. Students learn to recognise the pattern, identify the first term and common difference, generate further terms, and use the nth-term rule to find a required term. As part of Sequences and Progressions, the topic builds clear reasoning through number patterns, tables, and simple problems, helping learners connect a general rule with specific values and explain their steps accurately.
Practice questions
What is the sum of the first 10 terms of the arithmetic progression (2, 5, 8, 11, …)?If (6,x,18) are in arithmetic progression, what is the value of (x)?What is the sum of the first 8 terms of the arithmetic progression (3, 8, 13, 18, …)?Which of the following nth-term rules represents an arithmetic progression for every positive integer n?What is the general term of the arithmetic progression (25,21,17,13,\ldots)?For an arithmetic progression with (a=8) and (a_6=43), what is (d)?In the arithmetic progression (4,10,16,22,\ldots), which term is (70)?If (a=13) and (d=-3), what is the value of (a_9)?If the terms at two distinct positions in an arithmetic progression are equal, which conclusion is necessary?What is the sum of the first (20) terms of the arithmetic progression (1,4,7,10,\ldots)?In an arithmetic progression, (a_4=20) and (a_8=44), what is (d)?If (a_5=27) and (d=5), what is the value of (a_1)?What is (a_{15}-a_5) for the arithmetic progression (6,13,20,27,\ldots)?If (a_n=9n-2), what is the sum of the first (6) terms?Which term of the arithmetic progression (17,24,31,\ldots) is (80)?If (a_2=12) and (a_6=32), what is the first term?In the arithmetic progression (30,27,24,21,\ldots), which term is zero?If (a=2) and (a_9=50), what is (d)?What is the sum of the first (12) terms of the arithmetic progression (9,16,23,\ldots)?In an arithmetic progression, a₃ = 15 and a₇ = 35. What is a₁?