CBSE Class 10 Answered
which term of the Ap 3,8 13,18,...is 78
Asked by svir8454 | 27 Dec, 2024, 11:57: AM
Given AP is 3, 8, 13, 18,...
First term, a = 3 and common difference, d = 8 - 3 = 5
Let nth term of AP be 78.
Then, a + (n - 1)d = 78
3 + (n - 1)5 = 78
(n - 1)5 = 75
n - 1 = 15
n = 16
Thus, the 16th term of an AP is 78.
Answered by Rashmi Khot | 27 Dec, 2024, 12:36: PM
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