Question
If the 5th term of a G.P. containing positive terms is 13 and 9th term is 16243, then the 4th term will be
Answer: Option B
:
B
T5 = ar4 = 13 .......(i)
and T9 = ar8 = 16243 .......(ii)
Solving (i) and (ii), we get r = 23 and a = 2716
Now 4th term = ar3 = 3324.2333= 12
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:
B
T5 = ar4 = 13 .......(i)
and T9 = ar8 = 16243 .......(ii)
Solving (i) and (ii), we get r = 23 and a = 2716
Now 4th term = ar3 = 3324.2333= 12
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