How many terms are in the G.P. 3, 6, 12, 24, ......., 3072 ? Select.
A) 8
B) 9
C) 11
D) 5
E) 2
Explanation:   Here a = 3 and r = 6/3= 
<gadget id="calculator">6/3</gadget>
<output>2</output>
2. Let the number of terms be n.   Then, t= 3072 =&gt; a * r^(n-1) = 3072   =&gt; 3 * 2^(n-1) = 3072 =&gt; 2^(n-1) = 1024 = 2^(10)   =&gt; n-1 = 10 =&gt; n = 11   Answer: 11
<result>C</result>
How many terms are in the G.P. 3, 6, 12, 24, ......., 3072 ?