How many terms are in the G.P. 3, 6, 12, 24, ......., 192 ?
Answers:
A) 8
B) 9
C) 67
D) 7
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= 192 =&gt; a * r^(n-1) = 192   =&gt; 3 * 2^(n-1) = 192 =&gt; 2^(n-1) = 64 = 2^(6)   =&gt; n-1 = 6 =&gt; n = 7.   Answer: 7
<result>D</result>
How many terms are in the G.P. 3, 6, 12, 24, ......., 192 ?