Question

8. The common difference of an A.P. is 3, then the value of
a20-a15 is
​

Answer 1

Answer:

15

Step-by-step explanation:

difference between the ap is 3.

so a20= a+19d

and a15 = a+14d

(a+19d)-(a+14d)

=a+19d-a-14d

=5d=5*3=15