Question

Find the common difference of the following Arithmetic sequence. 1) 5,9,13. 2) 25,21,17,. 3) 7,7.3,7.6 4) 8.6,9,9.4 5) 1⅓,3⅔,4,.?​

Answer 1

Answer:

) 5,9,13. 2) is the correct answer

Answer 2

Answer:

Solution:-

1) 5,9,13.. A. P.

d = t2-t1 = 9-5 = 4

d = 4

2) 25,21,17... A. P.

d = t2-t1 = 21-25 = -4

d = -4

3) 7,7.3,7.6 ... A. P.

d = t2-t1 = 7.3-7.0 = 0.3

d = 0.3

4) 8.6,9,9.4 ... A. P.

d = 9.0-8.6 = 0.4

d = 0.4

5) 1⅓,3⅔,4,.. A. P.

d = 11/3 - 4/3

= 7/3

= 2 ¹/3.

d = 2 ¹/3.