WORKSHEET-2 OF A.P(To finding n)

                                                                                E

1. Find the number of terms in the A.P. 2, 5, 8, ..., 50.

2. Find the number of terms in the A.P. 3, 7, 11, ..., 147.

3. Find the number of terms in the A.P. 10, 7, 4, ..., -17.

4. Find the number of terms in the A.P. 5, 10, 15, ..., 150.

5. Find the number of terms in the A.P. 2, 9, 16, ..., 77.

6. Find the number of terms in the A.P. 1, 3, 5, ..., 99.

7. Find the number of terms in the A.P. 4, 9, 14, ..., 139.

8. Find the number of terms in the A.P. 2, 6, 10, ..., 90.

9. Find the number of terms in the A.P. 3, 8, 13, ..., 188.

10. Find the number of terms in the A.P. 10, 15, 20, ..., 200.

11. Find the number of terms in the A.P. 1, 4, 7, ..., 148.

12. Find the number of terms in the A.P. 2, 5, 8, ..., 92.

13. Find the number of terms in the A.P. 3, 6, 9, ..., 141.

14. Find the number of terms in the A.P. 5, 12, 19, ..., 159.

15. Find the number of terms in the A.P. 2, 7, 12, ..., 107.

16. Find the number of terms in the A.P. 1, 3, 5, ..., 121.

17. Find the number of terms in the A.P. 4, 9, 14, ..., 169.

18. Find the number of terms in the A.P. 2, 6, 10, ..., 110.

19. Find the number of terms in the A.P. 3, 8, 13, ..., 163.

20. Find the number of terms in the A.P. 10, 15, 20, ..., 250.

ANSWER KEY :

1. 17

2. 37

3. 10

4. 30

5. 00000

6. 50

7. 28

8. 23

9. 38

10. 39

11. 50

12. 31

13. 47

14. 23

15. 22

16. 61

17. 34

18. 28

19. 33

20. 49