In an A.P., if a = -7.2, d = 3.6, an = 7.2, then n is

In an A.P., if a = -7.2, d = 3.6, a_n = 7.2, then n is
(a) 1
(b) 3
(c) 4
(d) 5

Solution:

Which term of the A.P. 21, 42, 63, 84,… is 210?
(a) 9th
(b) 10th
(c) 11th
(d) 12th

Solution:

More Solutions:

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