3 years ago

Given the following geometric sequence, find the common ratio: {3, 18, 108, ...).

1 answer:

4 0

Geometric sequences go up due to a common ratio. Here the common ratio can be worked out by dividing a term by its previous term e.g term 2 divided by term 1.

$18/3 = 6
$

Therefore the common ratio is 6.

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