Aled Walker, Alexander Walker, Arithmetic Progressions with Restricted Digits, The American Mathematical Monthly, Vol. 127, No. 2 (FEBRUARY 2020), pp. 140-150 ...

Some newly-discovered arithmetic progressions of primes are presented, including five length twenty-one and one of length twenty-two. This journal, begun in 1943 as Mathematical Tables and Other Aids ...

Her goal in telling the story of people’s long-held fascination with arithmetic progressions is to help us enjoy math for math’s sake. Read her article, and I think you will.

Now that you have gone through the questions, download volume 3 and 4 of CBSE Class 10 Mathematics Chapter 5 Arithmetic Progressions competency-based practice questions from the links below.