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Source: — Data Sufficiency |
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by jayhawk2001 » Thu Jun 07, 2007 9:38 pm
1 - insufficient.
t1+t2+...+tn = 3124. Can't find n

2 - insufficient.
t1+t2+...+tn = 4n. Can't find n.

Using 1 and 2, 4n = 3124. So, sufficient to find n
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