Insert 7 A.M.s between 2 and 17.

Let A1, A2, A3, A4, A5, A6, A7 be the 7 AM Between 2 And 17


Then, 2, A1, A2, A3, A4, A5, A6, A7, 17 are in AP


We know,


An = a + (n - 1)d


A9 = 17 = 2 + (9 - 1)d



hence,









3