List of top Mathematics Questions on Arithmetic Progression asked in CET Delhi Polytechnic

If \(\frac{5+9+13+…… \text{ to } n \text{ terms}}{7+9+11+……. \text{ to } (n+1) \text{ terms}}\) \(= \frac{17}{16}\) then\(n =\)

If the sum of first \(n\) terms of an A.P. is \( \frac{3n^2}{2} + \frac{5n}{2} \) then its 25th term is :
Sum of all 3 digit natural numbers which are divisible by 13 :
What will be the sum of n terms of the following arithmetic progression if the arithmetic progression is: \( (x-y)^2, (x^2+y^2), (x+y)^2, \ldots\ldots\ldots \) up to n terms:
If K, 2K \(-1\), 6 are in A.P., then the value of K is :
If the common difference of an AP is 3 then the difference between 20th terms and 15th terms (\(a_{20} - a_{15}\)) is :