Question

17. Which of the following
sequence are in A. P.?
a. 1,10, 21, 31, ....
b. 20, 24, 28, 32, ....
c. 7, 14, 21, 31,....
d. 5, 10, 20, 30,....​

Answer 1

Answer:

b. 20,24,28,32,....

Step-by-step explanation:

24-20=4

28-24=4

32-28=4

so here ap (d) is same

Answer 2

Step-by-step explanation:

b)32,36,40...

sorry i can not answer more