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If \(r\) is a constant and \(a_n=rn\) for all positive integers \(n,\) for how many values of \(n\) is \(a_n<100?\)
(1) \(a_{50}=500\)
(2) \(a_{100}+a_{105}=2050\)
Answer: D
Source: Official Guide
(1) \(a_{50}=500\)
(2) \(a_{100}+a_{105}=2050\)
Answer: D
Source: Official Guide
