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#1 Re: Ganesh's Puzzles » 10 second questions » 2012-08-19 03:22:32

Proportion is a factor of equality.

#2 Re: Ganesh's Puzzles » 10 second questions » 2012-08-19 03:05:54

7, 14, 21, 28,....
a=7
d=7
n=?
Tn=98
Tn=a+(n-1)d
n=14

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