alleryWhich of these is NOT an AP?
A0, 5, 10, 15, …
B1, 3, 5, 7, …
C−2, 2, 6, 10, …
D1, 2, 4, 8, …
Answer & Solution
Correct answer: D. 1, 2, 4, 8, …
Option D has differences 1, 2, 4 — not constant. It is a GP, not an AP.
The other three are APs with d = 4, 5, 2 respectively.
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