The first term and the common difference of an A.P. are 8 and -5 respectively. The A.P. is :

1. 8, 13, 18, 23, 28, ………

2. 8, 3, -2, -7, …….

3. -5, 3, 11, 19, 27, ……..

4. -5, -13, -21, -29, …….

The 15^th term of the A.P. 3, 0, -3, -6, …… is :

1. -42

2. 39

3. 42

4. -39

The 24th term of an A.P. exceeds its 19^th term by 10, its common difference is :

1. 5

2. 2

3. 10

4. 1

In the A.P. 8, 13, 18, ……., the n^th term is 83, then n is equal to :

1. 14

2. 16

3. 13

4. 15