Question 1 :
Does $a_1, a_2, . . ., a_n, . . $ form an AP where $a_n = 3 + 4n$?
Question 2 :
Find the sum of first 51 terms of an AP whose second and third terms are 14 and 18 respectively.
Question 3 :
In an AP, given $d = 5, S_9 = 75$, find a and $a_9$.
Question 4 :
The first and the last terms of an AP are 17 and 350 respectively. If the common difference is 9, how many terms are there in the AP?
Question 5 :
Find the sum of the odd numbers between 0 and 50.
Question 6 :
For what value of n, are the nth terms of two APs: 63, 65, 67, . . . and 3, 10, 17, . . . equal?
Question 7 :
In an AP, given a = 5, d = 3, $a_n$= 50, find n and $S_n$.
Question 8 :
If the sum of the first n terms of an AP is $4n – n^2$, What is the 2nd term ?
Question 9 :
11th term of the AP: – 3, -0.5, 2, . . ., is
Question 10 :
Find the sum of the following AP: $\frac{1}{15}, \frac{1}{12}, \frac{1}{10}, . .$ , to 11 terms
