alleryWhat is the common ratio of 10, 5, 2.5, 1.25?
A5
B2
C1/2
D1/4
Answer & Solution
Correct answer: C. 1/2
1. Each term is the term before multiplied by the same number.
2. 5 / 10 = 1/2 and 2.5 / 5 = 1/2.
3. So the ratio is 1/2.
_Source: Wikipedia, Geometric progression (CC BY-SA 4.0), Geometric progression_
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