Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
p, r, s, t, u An arithmetic sequence is a sequence in which [#permalink]
26 Feb 2008, 18:50
247. p, r, s, t, u An arithmetic sequence is a sequence in which each term after the first is equal to the sum of the preceding term and a constant. If the list of numbers shown above is an arithmetic sequence, which of the following must also be an arithmetic sequence?
I. 2p, 2r, 2s, 2t, 2u II. P-3, r-3, s-3, t-3, u-3 III. P^2, r^2, s^2, t^2, u^2
A. I only B. II only C. III only D. I and II E. II and III _________________