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
Why is the sequence (5,10,20,40,\ldots) not an arithmetic progression?What is the value of (d) in the arithmetic progression (6,15,24,33,\ldots)?The numbers of chairs in consecutive rows of an auditorium are 18, 21, 24, 27, .... A student says that this is an arithmetic progression because the difference between consecutive terms is the same. Which is the correct evaluation of the student's statement?What is the sixth term in the arithmetic progression 65, 60, 55, 50, …?In the arithmetic progression (3,10,17,24,\ldots), which term is (38)?If (a_n=4n+6), what first three terms does it give?What is the general term of the arithmetic progression (15,20,25,30,\ldots)?If (8,17,26,\Box,\ldots) is an arithmetic progression, what term fills the blank?What is the common difference in the arithmetic progression (27, 21, 15, 9, ...)?What is the eighth term in the arithmetic progression (18,25,32,39,\ldots)?Is (12, 24, 36, 48, ...) an arithmetic progression?If (a=5) and (d=11), what are the first four terms?Which is the general term of the arithmetic progression (48,40,32,24,\ldots)?If (a_n=56-8n), what is the value of (a_4)?What are (a) and (d) in the arithmetic progression (6,17,28,39,\ldots)?Which of the following properties identifies an arithmetic progression?In the sequence (8,13,18,23,\ldots), which term is (33)?If an arithmetic progression has (a_1=14) and (a_2=23), what is the common difference?What is the next term of the arithmetic progression (24,31,38,45,\ldots)?What is the fifth term in the arithmetic progression (140,130,120,110,\ldots)?