Maths Quiz

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Which sequence isn’t a geometric progression?

3, 6, 9, 12
4, 8, 16, 32
1, 5, 25, 125
2, 6, 18, 54

Fact Lab

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Interesting fact:

How well do you know the second law of thermodynamics? “The algebraic sum of all the transformations occurring in a cyclical process can only be positive, or, as an extreme case, equal to nothing.” Go figure that one out.