Question

Two APs have the same common difference. The first term of one of these is -1 and that

of the other is -8. What is the difference between their 4

ℎ

terms?​

Answer 1

Answer:

4th term of first AP is -1+3d

and 4th term of second AP is -8+3d

and

the difference of its 4th term is

(-1+3d )-(-8+3d )= -1+3d+8-3d= -1+8= -7