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From the third term on

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by sanju09 » Sat Jul 24, 2010 2:00 am
The first term in a sequence is 1 and the second term is 5. From the third term on each term is the average (arithmetic mean) of all preceding terms. What is the 25th term in the sequence?
A. 2.5
B. 3
C. 5
D. 25
E. 50

[spoiler]Source: majortests.com[/spoiler]
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by selango » Sat Jul 24, 2010 4:13 am
a1=1

a2=5

a3=3

a4=3

a5=3

a6=3

If u check the terms,the pattern repeats with value 3.

-->a25=3

Pick B
--Anand--
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