Question

1000,500,250,125 arithmetric, geometric, or neither

Answer 1

`G`eometric.

Explanation:

To get the common ratio in a Geometric Progression (GP), T2/a(T1). a(T1) = 1000, T2 = 500.

So, 500/1000 = 1/2. Therefore, common ratio = 1/2

Now, multiply by the the given term to find the next term i.e

1/2 × 1000 = 500, 1/2 × 500 = 250, 1/2 × 250 = 125, 1/2 × 125 = 62.5, etc.

I hope this helps