Find the fourth term from the end in an A.P. -11, -8, -5,. . ,49,2. – InterviewSolution

1.

Find the fourth term from the end in an A.P. -11, -8, -5,. . ,49,2.

Answer»

To find 4th term from end reverse the AP 49......-5, - 8, - 11

nth term = a + (n-1)da = 49, d = -11 - (-8)= -3, n = 4

4th term = 49 + (4-1)-3= 49 - 9= 40 ans

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