The 11th of the G.P. (1/8), (-1/4), 2, -1, ….. is

The 11th of the G.P. , , 2, – 1, … is
(a) 64
(b) -64
(c) 128
(d) -128

Solution:

The 5th term from the end of the G.P. 2, 6, 18, …, 13122 is
(a) 162
(b) 486
(c) 54
(d) 1458

Solution:

More Solutions:

• The nth term of an A.P. cannot be n² + n + 1.
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