Question

First term of an ap is 4 and the common diffetence is 3.Its 12th term is same as the 8th term of another ap having 1st term -5.Find the commondifferenc of the second ap

Answer 1

Answer:

Step-by-step explanation:

12th term of first ap is

a+(n-1)d

4+(12-1)3

4+11*3

4+33

37

so eighth term of second ap is 37

37=-5+(8-1)d

37+5=7d

42=7d

42/7=d

d=6